Bacteria that feed upon decaying organic matter in the soil would best be heterotrophic.
What is bacteria?
The smallest single-celled living things are called bacteria. Bacteria come in millions of distinct varieties. There are numerous things in and on your body that are good for you. Your microbiome, which is made up of these microorganisms, maintains the health of your body.
What is heterotrophic ?
A heterotroph is a living thing that consumes the nutrients and energy found in other plants or animals. The word is derived from the Greek terms "nourishment" and "other" in the phrase "heterotrophia."
Therefore, Bacteria that feed upon decaying organic matter in the soil would best be heterotrophic.
Learn more about bacteria from the given link.
https://brainly.com/question/8695285
#SPJ1
What is not used as evidence to support evolution?
The evidence in support of evolution is not provided by the most well adapted individuals will not always reproduce the most fit offspring.
What is natural selection?Natural selection is the process by which populations adapt and evolve to conditions. Well-adapted individuals survive and reproduce better because they produce well-adapted offspring.
One of the driving mechanisms of evolution is natural selection. Thus, nature uses selective pressures (environmental factors) in the environment of organisms to select or favor optimal organisms over non-optimal organisms, increasing gene flow and thereby recognizing individuals as adaptive organisms. resulting in increased populations of the herd and subsequent offspring.
Natural selection is caused by mutations that cause mutations. These interrelated forces altered the genotypes of adapted organisms, giving them a superior advantage over less fit organisms. Over time, populations of adapted organisms evolved to dominate the environment, while populations of less-adapted organisms disappeared.
To know more about natural selection :
https://brainly.com/question/2725702
#SPJ1
Natural variation is simply the distinctions between individual cells, organisms, or species. This does not offer proof of evolution.
What is variation exactly?Any difference between both the individuals inside a species or between groups of organisms from any species is referred to as variation. Genetic variety is mostly caused by mutation, but other processes like sexual reproduction & gene flow also play a role.
What does cell variation entail?
Cell-to-cell variation can be described most simply as the expression of the same gene at different levels in genetically and chronologically identical cells. For isolated single cells, the explanation is adequate, but in a multicellular organism, there may be more to it.
To know more about variation visit:
https://brainly.com/question/15621252
#SPJ1
Which of the following represents the correct sequence of parts through which blood moves in passing from the vena cava to the lungs?
Choose matching definition
1. right ventricle, lungs, left atrium, left ventricle, body, right atrium
2. Right atrium, pulmonary semilunar valve, right ventricle, tricuspid valve
3. pulmonary artery
4. right atrium
Blood enters the right atrium of the heart from the superior and inferior venae cava , travels through the bicuspid valve, and then is pumped via the pulmonary semilunar valve and into the pulmonary trunk by the right ventricle. The left and right pulmonary arteries branch off from this point and deliver blood to the left and right lungs, respectively.
What are the heart valves?Each of the four heart chambers has its own valve. The four heart valves determine the best route for effective blood flow via the heart. To assist in moving blood from one location to another, they open and close. Our heart's four chambers are traversed by the four valves.
The smaller chambers on top are the atriums , while the smaller chambers on the bottom are the ventricles. These four heart valves are as follows:
Mitral valveAortic valveTricuspid valvePulmonary valveDefine pulmonary circulation?Pulmonary circulation moves blood between the heart and the lungs. It transports deoxygenated blood to the lungs to absorb oxygen and release carbon dioxide. The oxygenated blood then flows back to the heart.
To know more about Circulatory system, visit;
https://brainly.com/question/29259710
#SPJ1
FILL IN THE BLANK. Wetlands provide a multitude of ecological, economic, and social benefits. They provide habitat for many organisms and are nurseries for many saltwater and freshwater fishes and shellfish. Wetlands also hold and slowly release floodwater and snow melt, recharge groundwater, act as cleansing filters, recycle nutrients, and provide recreation. As of 2000, the contiguous United States was estimated to have about 105 million acres of wetlands remaining. Over the past 60 years, it has lost over 16 million acres of wetlands, and the loss continues at about 58,000 acres annually. Nearly one-third of the loss is due to urban development, with the rest being nearly equally divided between rural development, agriculture, and silviculture (predominantly logging). The southeastern United States is experiencing the greatest losses. The Emergency Wetlands Resources Act of 1986 requires the Fish and Wildlife Service to conduct status and trend studies of the nation's wetlands and to report the results to Congress each decade. The overall goal is to have no more net loss of wetlands. In the past 5 years, money for flood control projects in Louisiana has been cut dramatically. During that time, two simulations, one of a category 4 hurricane and one of a category 5 hurricane, indicated catastrophic damage and loss of life along the Gulf Coast. The levees were predicted to break, and massive flooding to occur, in part due to the loss of the sheltering wetlands.
Wetlands in the United States ________.
-have increased due to natural causes, such as floods and hurricanes
-have decreased due to human development
-have stayed about the same over the past 40 years
-have decreased due to natural causes, such as floods and hurricanes
-have increased due to human development
Wetlands in the United States have decreased due to human development.
What are wetlands?Wetlands is a distinct ecosystem that is flooded / saturated by water, permanently or seasonally. Flooding results in the oxygen-free processes prevailing, especially in soils.
Over the past decades, wetlands have been drained and filled in to make way for agriculture, urbanization and other types of development. This has led to significant loss of wetland habitat and ecosystem services they provide like flood control, water filtration, and wildlife habitat. Despite efforts to protect and restore wetlands, overall extent continues to decline in many parts of country.
To know more about wetlands, refer
https://brainly.com/question/11438518
#SPJ1
In Guinea pigs; black fur color (B) is dominant to albino (b): and Rough coat is dominant to Smooth coat (1) group of heterozygous black; smooth males (Bbrr) are mated with heterozygous black; heterozygous rough females (BbRr) total of 150 offspring De produced. By considering observed affsprings: please answer the following questions step by step. (12 p) What is your null hypothesis?
Null hypothesis: There are no statistically significant differences between the observed and the expected outcomes. The differences in the outcomes are by chance.
What is a null hypothesis?In statistics, the Null Hypothesis is the prediction made about population parameters. It refers to the equality between variables. It states there is no difference between variables.
Usually, the null hypothesis is opposite to the alternative hypothesis, which proposes differences between variables.
The alternative hypothesis is what the researcher wants to prove or test, but the conclusions are done concerning the null hypothesis,
There is enough evidence to reject the null hypothesisThere is not enough evidence to reject the null hypothesisCross
Parentals) Bbrr x BbRr
F1) Total: 150 pigs
Observed
63 black and rough (42%) 51 black and smooth (34%) 12 albino and rough (8%) 24 albino and smooth (16%)Expected
Br Br br br
BR BBRr BBRr BbRr BbRr
Br BBrr BBrr Bbrr Bbrr
bR BbRr BbRr bbRr bbRr
br Bbrr Bbrr bbrr bbrr
6/16 black and rough (37.5%)6/16 black and smooth (37.5%)2/16 albino and rough (12.5%)2/16 albino and smooth (12.5%)
Expected Observed
Black and rough 56.25 63
Black and smooth 56.25 51
Albino and rough 18.75 12
Albino and smooth 18.75 24
We can see differences between the observed and the expected number of pigs with different phenotypes.
Null hypothesis:
There are no statistically significant differences between the observed and the expected outcomes.
Genes coding for each trait are expected to assort independently.
If there are differences between the observed and the expected values, these are by chance.
You can learn more about the null hypothesis at
https://brainly.com/question/30351745
#SPJ1
how do cells in a meristem differ from cells in other types of plant tissue? see concept 35.2 (page)
Answer:sqwaaa
Explanation:sqwwwaa
If the ecosystem is a closed system, which of these things does not change as it cycles through the ecosystem?
A. the location of matter
B. the form of matter
C. the total amount of matter
D. all of these
Answer:
c
Explanation:
it is c, the total amount of matter won't change as its closed
this behavior continues to be present in the rabbitfish population because?
Answer:
this behavior was learned by observing other fish species
Explanation:
hope this help
Which of the following is NOT part of the attempt to address overfishing by the Magnuson-Stevens Fishery Conservation and Management Reauthorization Act?
A) Establishing quotas for fishing
B) Research on marine environments
C) Compensation for sustainable fishing practices
D) Setting aside 200 nautical miles of the U.S. coast
The one that is NOT part of the attempt to address overfishing by the Magnuson-Stevens Fishery Conservation and Management Reauthorization Act is : Setting aside 200 nautical miles of the U.S. coast is NOT part of the attempt to address overfishing by the Magnuson-Stevens Fishery Conservation and Management Reauthorization Act. Option D) is the correct answer.
What is Magnuson-Stevens Fishery Conservation and Management Act?The Magnuson-Stevens Fishery Conservation and Management Act primarily focuses on the conservation and management of marine fishery resources in the United States. The Act addresses overfishing by implementing a number of measures, including establishing quotas for fishing, conducting research on marine environments, and promoting sustainable fishing practices. However, the Act does not include a provision for setting aside 200 nautical miles of the U.S. coast.
Learn more about Magnuson-Stevens Fishery Conservation and Management Act on
https://brainly.com/question/17140759
#SPJ1
The following which is not part of the attempt to address overfishing by the Magnuson-Stevens Fishery Conservation and Management Reauthorization Act is research on marine environments and is therefore denoted as option A.
What is Magnuson-Stevens Fishery Conservation and Management Reauthorization Act?This is referred to as the primary law that governs marine fisheries management in U.S. federal waters and it fosters the long-term biological and economic sustainability of marine fisheries.
It is however not concerned with research on marine environments which is therefore the reason why it was chosen as the correct choice.
Read more about Marine environment here https://brainly.com/question/16433460
#SPJ1
a. Describe what happened during the above light forest simulation in 2-3 sentences.
Type your answer here:
What are homologous chromosomes?
Chromosomes that are the same length
Chromosomes that are completely different
than one another
Chromosomes that are identical to each other
in every single way
Answer:
chromosomes that are identical to each other in every single way
Explanation:Homologous chromosomes are those chromosomes which pair up during the time of fertilization . They consist of same genes which are present at same loci. During the time of fertilization when maternal and paternal chromosomes segregated and each one of them pair up i.e one comes from maternal side and other from paternal side and leads to the formation of homologus chromosomes.
HELPHELPHELPHELPHELPHELPHELPHELPHELPHELPHELP
We can see here that looking at the movement from point A to point B, we discover that the elevation is: D. Decreasing, then increasing.
What is elevation?Elevation, in geography and cartography, refers to the height of a location or feature above a reference point, which is usually sea level. It is a measure of vertical distance and is often used interchangeably with altitude, which is the height of an object or point above the earth's surface.
We should know that contour lines are lines that connect points of equal elevation. When contour lines are actually closer together, it indicates a steeper slope or an increase in elevation. Conversely, when contour lines are farther apart, it indicates a flatter slope or a decrease in elevation. Thus, that is why the elevation was decreasing and at some points it started increasing.
Learn more about elevation on https://brainly.com/question/22136251
#SPJ1
Drag the tiles to the boxes to form correct pairs.
Match each type of heat transfer method with its description.
conduction
convection
radiation
relates to density differences within fluids
does not require a medium or physical contact to transfer heat
occurs during physical contact between solid objects not in thermal equilibrium
The matching of the types of heat transfer methods with their description are given below.
What is heat transfer?Heat transfer is the process by which thermal energy is exchanged between two or more objects or systems. The thermal energy can be transferred by conduction, convection, or radiation.
Conduction—occurs during physical contact between solid objects not in thermal equilibrium.Convection-relates to density differences within fluids.Radiation-does not require a medium or physical contact to transfer heat.Heat transfer plays an important role in many areas of science and engineering, including thermodynamics, materials science, and mechanical engineering. It is used in the design and optimization of many systems, such as power plants, refrigeration systems, and electronic devices.
For more details regarding heat transfer, visit:
https://brainly.com/question/13433948
#SPJ9
Answer:
relates to density differences within fluids → convection
does not require a medium or physical contact to transfer heat → radiation
occurs during physical contact between solid objects not in thermal equilibrium → conduction
Explanation: ed mentum or plato
In a large population of approximately 1 million E. coli , one bacterium gains a mutation that gives it a fitness advantage , with a selective coefficient of . Which of the following statements is FALSE ? s = 0.001 Given the population size , the selective coefficient is large enough to overcome genetic drift . It is possible that the mutation could be lost from the population due to genetic drift . The mutation will likely sweep through the population to fixation if the individual has offspring with the new mutation Ans = 0.001 would not be considered large given that population size .
It is considered "fixed" inside the population that once frequency of a allele reaches 100%, i.e., is the only genetic variant present in either member.
What do you name a gene that is fixed inside the population due to a mutation?December 2020) An allele is considered permanent if it is the only variety of that gene in the population. The entire population is heterozygous for a fixed allele. The term "allele" typically refers with one variant gene from out numerous that could exist for a specific Genomic region.
What impact does population size have on these alleles' time to fixation?The likelihood of fixation increases because individuals with the mutant gene are much more likely to reproduce in a population that is expanding. Since it's more rare and more apt to be established, the allele has a lower risk of being lost.
To know more about genetic visit:
https://brainly.com/question/30459739
#SPJ1
fungi is benefical to us because of the following reason:
《1》 they are a source of oxygen.
《2》 they can clean up pollution.
《3》 they are a source of antibiotics
《4》 they help to clean run off from waste
Answer: ITS 33333333
Explanation: ik im right
infoldings of the prokaryotic plasma membrane are thought to have given rise to the eukaryotic endomembrane system that includes which of the following? multiple choice question.
Infolding of the prokaryotic plasma membrane is thought to have given rise to the eukaryotic endomembrane system that includes the endoplasmic reticulum and nuclear envelope.
How did a prokaryotic cell give rise to the eukaryotic cell?A prokaryotic cell eventually gives rise to the eukaryotic cell through the process of endosymbiosis theory. According to this theory, the first eukaryotic cells evolved from a symbiotic relationship between two or more prokaryotic cells.
The endomembrane system of prokaryotic cells generally includes certain cell organelles like the endoplasmic reticulum, Golgi complex, lysosomes, and vacuoles. These systems are further modified into eukaryotic cells through endosymbiosis mechanisms.
Therefore, the infolding of the prokaryotic plasma membrane is thought to have given rise to the eukaryotic endomembrane system that includes the endoplasmic reticulum and nuclear envelope.
To learn more about Endosymbiosis theory, refer to the link:
https://brainly.com/question/1698852
#SPJ1
drag the images to their corresponding class to test your understanding of various types of microbiological stains.
Images 2 and 5 belong to gram stain, image 3 belongs to negative stain, image 4 belong to simple stain, and image 1 belongs to acid-fast stain.
What is staining?Staining is a technique used to magnify and contrast a biological specimen at the microscopic level in microbiology. For histological analyses and diagnostic purposes, the specimen is highlighted at the microscopic level using stains and dyes before being examined at higher magnification.
There are four types of staining and that are gram stain, negative stain, simple stain, and acid-fast stain.
Thus, images 2 and 5 belong to gram stain, image 3 belongs to negative stain, image 4 belongs to simple stain, and image 1 belongs to acid-fast stain.
Learn more about staining, here:
https://brainly.com/question/13050145
#SPJ1
Your question is incomplete, most probably the full question is this:
drag the images to their corresponding class to test your understanding of various types of microbiological stains.
The image is attached below:
FILL IN THE BLANK Sometimes, older xylem cells lose their ability to conduct water when the protoplasts of adjacent parenchyma cells protrude into the xylem. These protrusions, or _______ create a spot where resins and tannins accumulate.
Sometimes, older xylem cells lose their ability to conduct water when the protoplasts of adjacent parenchyma cells protrude into the xylem. These protrusions, or Vascular cambium create a spot where resins and tannins accumulate.
What is Vascular cambium?Vascular cambium continues to divide, and cells of its inner surface differentiate to form additional secondary xylem cells.
The xylem tracheary elements comprises cells called tracheids and vessel members, both of which are usually hollow, normal, and elongated.
Therefore, the tracheids are less unique in comparison to the vessel members and are the only kind of water-conducting cells in the majority of gymnosperms and seedless vascular plants.
Therefore, Vascular cambium create a spot where resins and tannins accumulate.
Learn more about Vascular cambium on:
https://brainly.com/question/29485864
#SPJ1
TRUE/FALSE. natural metamorphic conditions exist on earth where you can have both incredible high amounts of pressure and, at the same time, temperatures that are close to the freezing point
Answer:
TRUE
Explanation:
When rocks are exposed to extreme temperatures, high pressures, hot mineral-rich fluids, or, more frequently, some combination of these conditions, metamorphic rocks are created. These kinds of conditions can be found deep inside the Earth or where tectonic plates collide.
a student argues that some microorganisms are harmful. which is evidence the student could use to support her argument.
《1》 Some bacteria cause diseases.
《2》 Some fungi are microorganisms.
《3》 Some algae are producers in oceans.
《4》 Some bacteria live in the human gut
•••ĥèĺp•••
The student's claim that some germs are dangerous could be supported by evidence of several bacteria, including streptococcus, and E. coli, are known to cause illnesses in people and other animals.
In a nutshell, what are hazardous microorganisms?A few examples of harmful microorganisms are fungi, bacteria, and protozoa. They induce a number of illnesses in people, animals, and plants that can potentially be fatal. The dangerous germs hurt not only our bodies but also the food we consume. Pathogens are those germs that cause disease.
Which bacteria are the most dangerous?Mycobacterium tuberculosis, which causes more than 1,700,000 fatalities annually, is the most lethal bacterial illness that can infect humans. Up to 13% of patients are resistant to the majority of antibiotics, and 6% are non-responsive to virtually every form of treatment.
to know more about microorganisms here;
brainly.com/question/6699104
#SPJ1
Part A - Regulatory Hormones Before exploring hormones that regulate blood glucose, you must first be able to use the vocabulary effectively. In this activity, match the correct term with the sentence that describes the structure or function involved in blood glucose regulation. Match the words in the left column to the appropriate blanks in the sentences on the right. View Available Hint(s) ResetHelp
1. Insulin is produced in and released from the ---.
2. In response to insulin or glucagon, either glycogenesis or gluconeogenesis, respectively will take place in the ---.
3. Glucose is stored as glycogen in the liver and in ---.
4. The body can either use --- for energy, convert it to glycogen, or store it as fat.
5. --- occurs when blood glucose levels drop to lower-than-normal levels.
6. As part of the response to increased blood glucose after a meal, insulin triggers the number of --- on the cell membranes in the body to be increased.
7. --- is a key hormone produced by the beta cells of the pancreas that plays a key role in regulating blood glucose levels after a meal.
8. --- is the storage form of glucose in the liver and muscles of humans and animals.
9. --- is a key hormone produced by the alpha cells of the pancreas that plays an important role in regulating blood glucose levels during times of fasting.
--- = WordSpot
WORDBOX-
Liver
Glucose
Glucose
Transporters
Insulin
Glycogen
Hypoglycemia
Muscles
Glucagon
Pancreas
1. Insulin is prοduced in & released frοm the Pancreas.
2. In respοnse tο insulin οr glucagοn, either glycοgenesis οr glucοneοgenesis, respectively will take place in the liver.
What exactly is insulin?Insulin is a peptide hοrmοne that is prοduced by pancreatic islet beta cells and is encοded in humans by the INS gene. It is thοught tο be the primary anabοlic hοrmοne in the bοdy.
It regulates carbοhydrate, fat, and prοtein metabοlism by increasing the absοrptiοn οf glucοse frοm the blοοd intο liver, fat, and skeletal muscle cells. Glucοse is cοnverted intο glycοgen by glycοgenesis οr fats (triglycerides) by lipοgenesis, οr bοth in the case οf the liver. High levels οf insulin in the blοοd strοngly inhibit the liver's glucοse prοductiοn and secretiοn. and
3. Glucοse is stοred as glycοgen in the liver and in muscles.
4. The bοdy can either use glucοse fοr energy, cοnvert it tο glycοgen, οr stοre it as fat
5. Hypοglycemia οccurs when blοοd glucοse levels drοp tο lοwer-than-nοrmal levels.
6. As part οf the respοnse tο increased blοοd glucοse after a meal, insulin triggers the number οf transpοrters οn the cell membranes in the bοdy tο be increased.
7. Insulin is a key hοrmοne prοduced by the beta cells οf the pancreas that plays a key rοle in regulating blοοd glucοse levels after a meal.
8. Glycοgen is the stοrage fοrm οf glucοse in the liver and muscles οf humans and animals.
9. Glucagοn is a key hοrmοne prοduced by the alpha cells οf the pancreas that plays an impοrtant rοle in regulating blοοd glucοse levels during times οf fasting.
Learn more about Insulin
https://brainly.com/question/28209571
#SPJ1
Types of Macromolecules: Part A
Decide whether each label describes proteins, nucleic acids, or carbohydrates, and then drag it into the appropriate bin.
Large, intricate molecules known as proteins perform a variety of vital functions in the body. They are crucial for the structure, operation, and regulation of the body's tissues and organs and carry out the majority of their job inside cells.
What are nucleic acids and what do they do?
Large biomolecules called nucleic acids are necessary for all organisms and viruses to function. The preservation and release of genomic data is a key role of nucleic acids. The information cells require to produce proteins is encoded in deoxyribonucleic acid, or DNA.
A broad variety of both beneficial and unhealthy meals, including bread, beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks, corn, and cherry pie, contain carbohydrates. They can take on various shapes as well. Sugars, fibers, and starches are the most prevalent and plentiful types.
To learn more about proteins use :
https://brainly.com/question/10058019
#SPJ1
Please help me answer this question ASAP!!
Both claims are wrong because the expression represents the quotient of 9 and y times the product of 3 and t.
What is the correct description of the given expression?The correct description of the given expression 9/y (3t) is obtained from the order of mathematical operation.
The expression represents the quotient of 9 and y times the product of 3 and t.
This is given below:
9/y (3t) = 9/y * (3 * t)
Therefore:
Student A who represents the expression as the product of 9 and y times the product of 3 and t is wrong.
Student B who represents the expression as the quotient of 9 and y times the sum of 3 and t is also wrong.
Learn more about mathematical expressions at: https://brainly.com/question/1859113
#SPJ1
You do a Gram stain on a known mixed culture and all you see are red-stained bacteria. It had been a long time since you did a Gram stain, and you did not have a written procedure to follow so you may have messed up a step. Choose all of the following scenarios which could be true.
Select one or more:
a. The culture contains only Gram-negative bacteria
b. You may have decolorized too long
c. The culture could contain Stapylococci that are older than 24 hrs
d. You forgot to add iodine
There are exclusively Gram-negative bacteria present in the culture. Maybe you've been decolorizing too long. The Stapylococci in the culture may be older than 24 hours. You failed to include iodine.
Where can you often find gram-negative bacteria?Sink drains, refrigerator condensate pans, and other sources of standing water are the principal sources of Gram-negative bacteria contamination in ISO-classified environments.
Gram-negative bacteria: beneficial or harmful?Gram-negative bacteria (GNB) are among the most serious public health issues in the world because of their high level of antibiotic resistance. Hospitals must take these bacteria seriously because they put patients in the intensive care unit (ICU) at risk and increase morbidity and mortality.
To know more about Gram-negative bacteria visit:
https://brainly.com/question/13756030
#SPJ1
FILL IN THE BLANK. The production process requires that management determine the amount of _____ to be used.
The production process requires that management determine the amount of resources to be used.
What steps are to be followed generally in a production process?The specific steps in a production process may vary depending on the industry, product, and company. However, in general, a production process typically involves the following steps:
Planning: The first step, in the production process is planning. This involves identifying the product to be produced, setting production goals, and developing a strategy for achieving those goals.
Design: The next step is product design, where the product's specifications are determined and the necessary engineering and design work is completed.
Sourcing: In this step, the materials and resources required for production are sourced, whether that is raw materials, parts, or labor.
Assembly: In this step, the product is assembled, and any necessary quality control checks are performed to ensure that the product meets the required standards.
Testing: Once the product is assembled, it undergoes testing to ensure that it meets the desired quality standards.
Packaging: The next step is packaging, where the product is prepared for shipment or delivery to the end customer.
Distribution: In this final step, the finished product is distributed to wholesalers, retailers, or directly to customers.
To know more about Design, visit:
https://brainly.com/question/14035075
#SPJ1
A cell is placed in a hypertonic solution. Which will most likely occur as homeostasis is maintained in the cell?.
Answer:
shrivel and die
Explanation:
A cell placed into a hypertonic solution will shrivel and die by a process known as plasmolysis. An isotonic solution is any external solution that has the same solute concentration and water concentration compared to body fluids. In an isotonic solution, no net movement of water will take place.
ryptic molecular variation uncovered by enzyme electrophoresis in the 1960s stimulated development of the neutral theory because of which of the following reasons?
The cryptic molecular variation uncovered by enzyme electrophoresis played a key role in the development of the neutral theory by challenging existing assumptions and providing a new framework for understanding the patterns of genetic variation observed in nature.
What is genetic variation?
Genetic variation refers to the diversity of genetic information, or alleles, that exist within and among populations of organisms. It arises from changes, or mutations, in the DNA sequence of genes over time.Genetic variation can occur at different levels, such as at the nucleotide level (i.e., changes in individual DNA letters), gene level (i.e., changes in the entire gene sequence), or chromosome level (i.e., changes in the number or structure of chromosomes).Genetic variation can have different effects on an organism's phenotype (observable traits), including no effect, beneficial effect, or harmful effect. Genetic variation is the basis of evolution by natural selection, as it provides the raw material for the process of adaptation, speciation, and ultimately, biodiversity.The cryptic molecular variation uncovered by enzyme electrophoresis in the 1960s stimulated the development of the neutral theory for several reasons:
Enzyme electrophoresis revealed that there was much more genetic variation in populations than previously thought. This observation challenged the prevailing view of the time, which held that most genetic variation was subject to natural selection.The neutral theory proposed that much of this variation was selectively neutral, meaning that it did not confer any advantage or disadvantage to individuals carrying it. This was in contrast to the traditional view that genetic variation was largely adaptive.The neutral theory was able to explain the observed patterns of molecular variation using simple mathematical models. This made it an attractive alternative to more complex, but less parsimonious, explanations based on natural selection.The neutral theory helped to reconcile conflicting observations from different areas of biology, such as the apparent constancy of molecular evolution rates over long periods of time and the high levels of genetic variation observed within populations.Learn more about cryptic molecular click here:
https://brainly.com/question/29519983
#SPJ1
if a scientist wanted to compare the excat number of organisms at each trophic level within an ecosystem, which pyramid model would be the most useful? why?
The biomass pyramid is the most important because it depicts the total amount of living organic matter (biomass) rather than just the number of species at each trophic level.
What is depicted in an ecosystem's biomass pyramid?The total biomass of the species present at each trophic level of an ecosystem is displayed as a pyramid of biomass. These pyramids are not always vertical. If the rate of primary production per unit biomass is high, the biomass concentrations near the base of the pyramid may be lower.
What is the biomass Mcq upright pyramid's one exception?This particular ecological pyramid takes into account the amount of biomass that each trophic level generates at each level. The biomass pyramid is also upright, with the exception of what is seen in seas, where a lot of zooplanktons rely on a lot of phytoplanktons.
To know more about biomass pyramid visit:-
https://brainly.com/question/1278919
#SPJ1
Conclusion: Use your data to answer the following questions. Use complete sentences, and be as detailed as possible. 1. How did scientists discover that all living things are made of cells? 2. How did Pasteur’s experiment with the flasks help disprove the idea that living things could just appear or come from nonliving things like water and air? 3. Why are nutrients needed for living things? Describe the difference between living and nonliving things.
Utilize full phrases, and be as specific as you can. 1. Explain how the test factor you selected changed the level of water in
What characteristics does water have?
Although the structure of water molecules (H 2 O) is straightforward, the compound's physical and chemical characteristics are incredibly complex and untypical of most substances on Earth.
Describe water.
The earth, the atmosphere, the sky, the mountains, the gods and humans, the species down to worms, flies, and ants are all made of water in various ways. These are all several types of water. Reflect on the water
To know more about water visit:
https://brainly.com/question/768709
#SPJ1
Why do you think it is advantageous for cells to go through the different phases of the cell cycle in an ordered way?.
It is good since all cells will go through the same process of division and will not expand out of proportion. If they did all of these things at once, they'd have a better chance of losing the cell.
What do you mean by a Cell?A cell may be defined as the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body.
A cell always goes through the different phases of the cell cycle in an ordered way. This is because a cell must have to divide and differentiate properly. But if a cell underwent all of the activities of the cell cycle at once, it is very tough for the cell to perform which activity at first, in this way cell loses its structure, and its identity and is finally damaged.
Therefore, if a cell underwent all of these activities at once, there will be a risk of damaging the cell.
To learn more about the Cell cycle, refer to the link:
https://brainly.com/question/15876101
#SPJ4
Full Question: Why do you think it is advantageous for cells to go through the different phases of the cell cycle (such as copying their genes or building the materials needed for division) in an ordered way? What might happen if a cell underwent all of these activities at once?
Students are designing an experiment to model the transfer of heat from the sun to the Earth. What must the students consider in their design to represent this form of energy transfer?
A. The Sun is a ball of fire therefore the students must use fire to represent the heat source.
B. Heat from the sun travels through space therefore the students will need a vacuum chamber to demonstrate this form of heat transfer.
C. Heat transfer from Sun to the Earth requires the students to model convection since the heat travels through our atmosphere.
D. Heat from the Sun travels to the Earth via conduction and convection as the Earth is comprised of solids, liquids, and gases.
Heat from the Sun travels through space therefore the students will need a vacuum chamber to demonstrate this form of heat transfer.
How transfer of heat occurs from sun?All heat from the sun comes to us in the form of radiation, since there is no matter in the space between the sun and the earth.) There is matter inside the sun, and other forms of heat transfer are at work. The sun uses two methods to transport energy from within. The first is radiation. Radiation originates from the core of the sun. In the sun's radiation belt, heat moves from the core as electromagnetic waves (radiation) to the sun's convective belt.
Convection is a flow that occurs when there is a difference in temperature or density. (Emphasis: Warm liquids and gases are less dense, so they float (or rise) in cooler liquids and gases.) As the warm gas (or liquid) rises, the colder gas (or liquid) moves, causing its Lost place, lost where to ingest. it is heated.
To know more about energy transfer :
https://brainly.com/question/28549411
#SPJ1
The students take into account representing this type of energy transfer in their design. Students will require a vacuum chamber to illustrate this type of heat transfer since solar heat moves across space.
Energy transfer What is it?The universe's overall energy level doesn't change. For instance, the potential energy of a block at the top of a slope is transformed into the kinetic of the block's motion when it slides down the slope. The kinetic energy is transformed into thermal energy when friction brings the block to a stop. Instead of being created or destroyed, energy only switches between potential, kinetic, and thermal energy.
What nine different ways does energy transfer?Thermal energy, radiant energy, chemical energy, nuclear energy, electrical energy, motion energy, sound energy, elastic energy, and gravitational energy are among the several types of energy.
To know mofre about energy transfer visit:
https://brainly.com/question/8306722
#SPJ1
