Answer: There are two types of photoreceptors involved in sight: rods and cones.
Explanation: I hope this helps!!!
many animals influence and contribute to ecosystem services. as pollinators, how do bees ultimately contribute to direct ecosystem services?
Bees serve as pollinators, moving pollen from flower to flower to nourish both cultivated and wild plants. The production of seeds by fertilised plants ensures the survival of the surrounding habitat.
A species that naturally inhabits and thrives in a certain ecosystem is said to be a native species. They include any species that evolved in the local ecosystem.
They typically exist in an ecosystem as a result of natural processes like natural selection or evolution. They are known to exist naturally within a specific habitat, as opposed to introduced species.
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TRUE/FALSE winds are created when cold air descending the sheltered (leeward) side of the rockies is warmed by compression.
Winds are created when cold air descending the sheltered (leeward) side of the rockies is warmed by compression is a true statement .
What are chinook winds? A powerful, dry, warm wind from the mountains occasionally blows across the plains during the chilly winter months in the districts east of the Rocky Mountains. These winds, also referred to as Chinook winds, can cause abrupt variations in temperature.According to Chinook Nation, the Chinook Native Americans who resided in the coastal areas of Washington and Oregon close to the Columbia River gave rise to the name of the Chinook winds. Worldwide, winds that resemble Chinooks are common and go by a variety of regional names. According to a 2001 paper by British scientist Emma Quaile in the journal Weather, they are known as föhn winds in the European Alps. These winds are known as afganet in central Asia, puelche in the Andes of South America, and the Santa Ana winds in southern California.For more information on chinook winds kindly visit to
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Once the global weather started dramatically changing, about how long did it take to go from our normal temperate climate to an ice age?.
The global weather started dramatically changing ,it take to go from our normal temperate climate to an ice age a few hours.
How soon does climate change start to happen?Climate refers to climatic changes over longer time periods, typically 30 years or more, as opposed to weather, which refers to short-term changes in the atmosphere.It just took a few hours for the temperature to drastically change over the world, going from our typical temperate environment to an ice age.Not likely, according to Gebbie, because even if the atmosphere cools, the melting ice sheets would not easily grow back to their original size due to the extreme heat that has already been baked into the Earth's system.We have long known that a new ice age could result from global warming.To learn more about climatic changes refer to:
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Which main types of discrimination did Truth face at the time of her ain't IA Woman speech?.
The speech by Truth was one she delivered during the Ohio Women's Convention. This speech resonates on both a racial and gender level with regards to political sensibility, social injustice, and the law.
It is a speech she delivered in 1851 before the Women's Convention in Akron, Ohio. The attendees of the female gender were urged to seek the right to vote. Convincing the audience that providing women the right to vote is a wise idea is the speech's main objective.
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How many CO2 molecules are produced when the glucose molecules undergo cellular respiration?.
CO2 molecules are produced when the glucose molecules undergo cellular respiration Therefore, two acetyl-CoA molecules, two carbon dioxide molecules, and two NADH molecules are produced.
Cellular respiration is a chain of chemical reactions that break down glucose to supply ATP, which may be used as energy to strengthen many reactions in the course of the body. There are three foremost steps of cell respiration: glycolysis, the citric acid cycle, and oxidative phosphorylation.
Cellular respiration is the method by way of which organisms use oxygen to interrupt food molecules to get chemical strength for cell features. cell breathing takes area within the cells of animals, flora, and fungi, and also in algae and different protists.
Cellular breathing is the aerobic process by which dwelling cells destroy glucose molecules, release electricity, and shape molecules of ATP. commonly speaking, this 3-degree system involves glucose and oxygen reacting to form carbon dioxide and water.
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explain the importance of prokaryotes to early earth and the rise of eukaryotic life (think of the atmosphere changes and the endosymbiotic theory).
Prokaryotes were believed to be the first life form of earth .
Difference between prokaryotes and eukaryotes ?
The basic and major difference between both is that eukaryotic cells have a membrane bound nucleus while prokaryotes do not .
Early earth's atmosphere was anoxic that means no o2 was available . so prokaryotes used to obtain their energy from chemicals , with the evolution of photosynthesis many years back , some prokaryotes such as cyanobacteria discovered how to extract energy from the sun by photosynthesis. Which resulted in the accumulation of o2 in the water bodies which oxidize iron in the water bodies to form iron oxide deposits . Afterwards , all the iron in the water bodies was oxidized , free o2 started to accumulate in the atmosphere.
The origin of eukaryotic cells are well defined by the endosymbiotic theory . This theory says that the large cells engulfed small cells .But they were not digested by large ones . Instead , they lived within the large cells and evolved into organelles .
Hence , that's why prokaryotes were important to early life .
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Can animals handle heat better than humans?.
A simple no is a response. Cats, dogs, and rabbits don't deal with heat as humans do.
Dogs typically have body temperatures of 103 degrees, so if they exceed that, they may get what is known as a heat stroke.
A dog or cat's typical body temperature ranges from 100 - 103 degrees. They experience is slightly more heat than humans do. Although the temperature is currently 98.6 degrees, it only needs a few degrees that are below the usual temperature for you to experience the consequences of hypothermia.
Dogs cannot sweat via their skin as people can, therefore they must control their body temperature & stay cool by panting and expelling heat through the paw pads and nose.
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2. which submodalities are normally included in somatosensation (know the name and be able to describe), which one did your instructor add under that category? which ones are interoceptive and which ones exteroceptive?
The submodalities included in somatosensation are exteroceptive and Interoceptive - feeling/sensing the body.
Somatosensation is the group of neurological approaches that guide touch, proprioception, and interoception. These approaches contain pressure, shaking, light touch, delight, itch, hotness, pain, proprioception, and the feeling of an animate being. The somatosensation function is the capability to define the bodily feeling. The sensation takes any of form, containing touch, pressure, shaking, hotness, itch, amusement, and pain.
The exteroceptive system senses provocation used to the skin of the frame; containing machinelike provocation for the perception of touch, the warm provocation for the perception of hotness, and nociceptive provocation for the feeling of pain.
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Having an abnormally small number of platelets in the circulating blood is known as.
You can develop thrombocytopenia if your blood platelet count is low. Blood cells without colour called platelets (thrombocytes) aid in blood clotting.
Why are our blood platelet counts reduced in this situation?
You can develop thrombocytopenia if your blood platelet count is low. Blood cells without colour called platelets (thrombocytes) aid in blood clotting. In blood artery damage, platelets gather and form plugs to stop bleeding.
An immune system issue or a bone marrow illness like leukaemia can both lead to thrombocytopenia. Alternatively, it can be a negative drug interaction. Both children and adults are impacted by it.
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One of the newest applications of cell technology is called cybrid embryos. This process involves replacing the nuclear material of an animal cell with human nuclear material. How might this process affect public policies about research by using stem cells? the same policies and concerns about the use of human embryonic stem cells would most likely apply. The embryos would most likely be treated like traditional animal embryos and regulated accordingly. The process of forming cybrid embryos would most likely be banned by government regulators. The embryos would be treated as regular cells because they are not fully human in origin.
Cybrids, also known as cytoplasmic hybrids, are eukaryotic cell lines formed by the fusion of a nuclear donor cell and a cytoplast from a different source, which serves as a mitochondrial donor.
A hybrid embryo is a cross between human and animal tissue. There are several types of hybrid embryos, but cytoplasmic embryos have recently sparked controversy. The first is to transplant organs from one animal into another, which is a risky proposition because the host's immune system may reject the organ. The other method is to start at the embryonic level, inserting cells from one animal into the embryo of another and allowing them to grow together into a hybrid.
The stem cell embryo model is significant because it allows us to see the developing structure at a stage that is normally hidden from us due to the tiny embryo's implantation into the mother's womb.
Transferring only one embryo at a time is recommended to reduce the number of multiple pregnancies caused by IVF, as such pregnancies pose risks to both mothers and babies, including increased rates of maternal mortality, preterm births, and low birth weight.
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the classic view of the cells of the blastema are that they are completely dedifferentiated and have the same potential as es cells. experiments in which gfp transgenic tissue was transplanted demonstrated which of the following?
Experiments in which GFP transgenic tissue was transplanted demonstrated blastema cells can only contribute to the lineage they were original.
How do cells know what and where they are?The blаstemа is а mаss of progenitor cells thаt enаbles regenerаtion of аmputаted sаlаmаnder limbs or fish fins. Uses GFP or RFP trаnsgenic аxolotl in trаnsplаntаtion аnd regenerаtion studies to extend our confidence thаt cells know their fаte аnd retаin it through the blаstemа.
The experiments show thаt cаrtilаge cells аlso retаin аnd аct on the memory of their originаl positions but thаt neurаl crest-derived Schwаnn cells do not.
Your question is incomplete, but most probably your full options were
A. All blastema cells contribute to all cell lineages during regeneration
B. Blastema cells are embryonic stem cells.
C. Blastema cells do not dedifferentiate.
D. Blastema cells can only contribute to the lineage they were originally.
Thus, the correct option is D
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Some photosynthetic organisms contain chloroplasts that lack photosystem II, yet are able to survive. The best way to detect the lack of photosystem II in these organisms would beAto determine if they have thylakoids in the chloroplasts.Bto test for liberation of O2 in the light.Cto test for CO2 fixation in the dark.Dto do experiments to generate an action spectrum
The best way to detect the lack of photosystem II in the organisms in the question above would be to determine if they have thylakoids in the chloroplasts. Therefore, the correct answer is option A.
The photosystem is the unit responsible for the photosynthesis process in organisms. It's consisted of proteins and pigments that transfer electrons to reaction centers utilizing light to energize the electrons.. Photosystems are found in the thylakoid membranes of organisms that do photosynthesis, such as plants, algae, and cyanobacteria. The thylakoid membranes are located inside the chloroplasts (for plants and algae) or cytoplasmic membranes (for cyanobacteria).
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which of the following is true about membrane proteins embedded within the lipid bilayer? group of answer choices lateral diffusion of the membrane protein occurs independent of bilayer composition and temperature. they undergo transverse diffusion readily at body temperature unless their movement is restricted by other cellular components. an increased temperature of the bilayer decreases the rate of transverse diffusion of the membrane protein. as the temperature decreases, lateral diffusion of the membrane protein is restricted in bilayers with lipids which have longer chain fatty acids and fewer double bonds.
True statements about membrane proteins is D. Lateral diffusion of membrane proteins is restricted in a bilayer with lipids that have longer chain fatty acids and fewer double bonds.
The cell membrane in living organisms is composed of lipid molecules in two layers. The cell membrane is a passive insulator and filter that has the ability to select materials that trap while maintaining differences in ion levels outside and inside the cell.
Membrane proteins are proteins embedded in the phospholipid bilayer. Membrane proteins play a role in cell identification, which are body cells and which are cells that are harmful to the body. Membrane proteins diffuse laterally in a lipid bilayer that has longer fatty acid chains and fewer double bonds.
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The __________ is the age at which a fetus can survive in the event that it is born early. a. prenatal age b. age of viability c. age of sustainability d. gestational age please select the best answer from the choices provided a b c d
The foetus can survive early birth if the event occurred at the till the age of viability.
The age of viability is the period at which the baby can survive during premature birth, It is the age from 22 weeks to 26 weeks. By this time the foetus reaches the sixth month of development. At this stage the lungs of the baby are formed and have the ability to breathe air, thus the name viability.
Viability also depends on other factors like weight and gestational age. The baby born during this period will require major medical intervention for saving life.
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An example of a gas cooling and
condensation taking place is when
A. melted candle wax hardens.
B. your shower water turns into steam.
C. ice cubes turn into water.
D. water vapor in the air turns into water droplets on the
outside of a cold glass.
Answer: I'm not sure but the closest to my answer is B-)
Here's an example of why i picked B):
The mirror in the bathroom during a shower becomes foggy because warmer water vapor in the air hits the cooler surface of the mirror.
Answer: The answer is D. water vapor in the air turns into water droplets
Explanation:
The ability to synthesize RNA in the laboratory is critical to many techniques. In vitro transcription requires a purified linear DNA template containing a promoter, ribonucleotide triphosphates, a buffer system that includes DTT and magnesium ions, and an appropriate phage RNA polymerase. Many common plasmid cloning vectors include phage polymerase promoters. They often contain two distinct promoters, one on each side of the multiple cloning site, allowing transcription of either strand of an inserted sequence. Plasmid vectors used as transcription templates are linearized by restriction enzyme digestion, during which the reaction does not include SAP. Following linearization, explain why the DNA does not reform the circular plasmid.
If SAP is not used and the DNA after linearization does not reform the plasmid, there are many reasons, such as:
Using another phosphatase enzyme that removes the phosphate tail, preventative ligation.Insufficient concentration of ligase enzymes in the mixture.Some of the factors required for ligase activity, such as magnesium ions, are insufficient.Ligation will occur at a certain temperature, if the temperature is not optimal then it will not occur.In vitro transcription requires a pure linear DNA template containing a promoter, ribonucleotide triphosphate, a buffer system that includes DTT and magnesium ions, and the appropriate phage RNA polymerase. The exact conditions used in a transcription reaction depend on the amount of RNA required for a particular application.
DNA can be found in two forms, namely linear and circular forms. Linear DNA is DNA in the form of a straight chain with both ends free. Linear DNA can be found in eukaryotic nuclei. Circular DNA is circular DNA, mostly found in prokaryotes. Circular DNA is found in the cytoplasm of prokaryotic cells (bacterial plasmids), in mitochondria, or chloroplasts
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select the three statements that are true. view available hint(s)for part c some monkey flowers (mimulus guttatus) living near the sites of copper mines can grow in soil containing high concentrations of copper, which is toxic to most plants. copper tolerance is a heritable trait. the map below shows the area near an old copper mine, which contaminated the nearby soil with copper. a stream flows past the mine toward the lake at the bottom right of the map. a map of the area near an old copper mine. copper-contaminated soil is located along the shore of a river and a lake. eight sites where nearly 100 percent of the monkey-flower plants are copper tolerant at 0.5 micrograms per cubic centimeter are located along the river. there are 4 sites located in uncontaminated areas where less than 20 percent of monkey-flower plants are copper tolerant. use the map to determine which of the statements below are true.select the three statements that are true. if you were to test monkey flowers growing on the shore of the lake, you would expect nearly 100% of them to be copper tolerant. the population that existed before mining must have included both copper-tolerant and copper-intolerant plants. natural selection favors copper tolerance in all soils near the old mine, not only in the contaminated soils. copper-tolerant plants are found only in contaminated soils. nearly 100% of monkey flowers growing in copper-contaminated soil are copper tolerant. copper contamination in the soil created copper-tolerant plants.
The three statements that are true regarding the copper tolerance of monkey flowers are statement 1, statement 2, and statement 6.
The height and width of a monkey flower plant range from two to three feet in both directions. Stems are unbranched and arch beautifully and are covered with pairs of leaves that are sticky.
The following statements about the copper tolerance of monkey flowers are true:
Statement 1
The population that existed before mining must have included both copper-tolerant and copper-intolerant plants.
Statement 2
Nearly 100% of monkey flowers growing in copper-contaminated soil are copper tolerant.
Statement 6
If you were to test monkey flowers growing on the shore of the lake, you would expect nearly 100% of them to be copper tolerant.
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true or false: the same primers were used to generate each of the six sequencing reads in this dataset.
True, the same primers were used to generate each of the six sequencing reads in this dataset.
What are sequencing reads?
The number of base pairs (bp) sequenced from a DNA fragment is referred to as the next-generation sequencing (NGS) read length. Following sequencing, the reads are assembled and aligned to a reference genome, which allows for the reconstruction of the complete DNA sequence. More chemical cycles result in longer reads, which are directly correlated with the sequencing reagents employed on an NGS equipment.
Your sample type, application, and coverage needs will determine the ideal sequencing read length. Long reads are advantageous for de novo assembly and more confidently resolving repetitive regions of the genome because they enable higher sequence overlap.
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What is the twisted ladder like structure of DNA?.
Twisted Helix (Double helix),The double helix, which resembles a twisted ladder, is the shape of DNA. Sugar and phosphate molecules alternately make up the sides of the ladder. It is deoxyribose, the sugar.
DNA is made up of a double helix. To put it another way, it is a spiral-shaped, double-stranded molecule. Deoxyribose sugars alternate with phosphates to create the molecule's exterior, or the rails of the stairway. The "backbone" of the molecule is another name for this area. The ladder's rungs are made up of pairings of the four different nitrogen bases.A lengthy polymer is created when the phosphates and sugars of nearby nucleotides connect. They demonstrated how the twisted uprights of the DNA ladder are made up of alternating deoxyribose and phosphate molecules. The complementary pairings of nitrogen bases that make up the ladder's rungs are A always paired with T and G always paired with C.DNA Replication Deoxyribonucleic acid, also known as DNA, resembles a long, spiralling ladder. It only has carbon, hydrogen, oxygen, nitrogen, and phosphorus as its main atom types. The sides of the DNA ladder, or the sugar-phosphate backbone, are made up of combinations of these atoms.To know more about double helix check the below link:
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How are eukaryotic genes regulated?.
By repressors as well as by transcriptional activators.
which of the following has been an observed consequence of the removal of top predators in an ecosystem? please choose the correct answer from the following choices, and then select the submit answer button.
Increases in both macropredator populations and wildlife killing cattle have been noted.
When the top predators are eliminated, what happens?Due of their ability to control prey populations, predators are crucial to ecosystems. Prey can overpopulate if there are no predators. It may also cause disease outbreaks that spread to domesticated animals and harm to nearby plants and plants.
What impact does the absence of predators have on the ecosystem?It was observed that the absence of significant predators in forest ecosystems has allowed game animal numbers to skyrocket, stunting the growth of young trees and lowering biodiversity. Less carbon is sequestered as a result of this, which raises the possibility of climate change and contributes to deforestation.
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TRUE/FALSE. a primary limitation of imaging the supraspinatus tendon with the arm in an adducted, neutral position is that the overlying scapular spine shields the proximal aspect of the supraspinatus tendon from view.
The proximal part of the supraspinatus tendon is hidden by the scapular spine, which is one notable drawback of imaging the supraspinatus tendon with the arm in an adducted, neutral position is true.
One is regarded to be at risk of missing proximal tendon disease if the supraspinatus tendon is not visible in long axis and the shoulder is not examined in a neutral position. Recall how it was said that internal shoulder rotation would enhance imaging of the supraspinatus tendon. Since the acromion blocks view of the proximal part of the supraspinatus tendon, it is preferable to avoid imaging in neutral position when imaging the supraspinatus tendon.
As a result, the scapular spine protects the proximal side of the supraspinatus tendon, which is a significant disadvantage when imaging the supraspinatus tendon with the arm in an adducted, neutral position.
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What are the 3 storing techniques?.
The 3 storing techniques are
CanningFreezingDryingA cheap method of maintaining the quality of food at home is canning. Applesauce, vegetables, jams and jellies, and baby purees are typical canned foods. A fantastic alternative for keeping most meals fresh. From vegetarian burger patties, chopped fruit, and blanched veggies to soups, baby purees, oats, and coffee grounds, everything may be frozen.A great way to preserve fruits, vegetables, and herbs. Food that has been dried typically tastes better, costs very little, and is easier to store because it is smaller.
Hence, storing food is done to use food for longer duration without getting spoiled.
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the allele frequencies for a population displaying hardy-weinberg equilibrium were found to be 0.4 dominant and 0.6 recessive. what percentage of the population is homozygous dominant?
36% of people have homozygous dominant genetic makeup.
What distinguishes homozygous from heterozygous dominance?An experiment called a test cross can be used to determine whether an organism displaying a dominant trait is homozygous or heterozygous for a particular allele. The test organism is crossed with a homozygous carrier of the recessive trait, and the offspring of the test cross are evaluated.
An allele frequency is calculated by dividing the total number of copies of all the alleles at that specific genetic locus in the population by the number of times the allele of interest is observed in a population. The decimal, percentage, or fractional forms of allele frequencies are all acceptable.
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the fur color of siamese cats is partly controlled by temperature. where their skin is relatively cool, like their ears, their fur grows dark, and where their skin is warmer, like their torso, their fur grows white. in this example, temperature is affecting what aspect of the siamese cat?
Temperature plays a role in determining the color of Siamese cats' fur. In this illustration, the Siamese cat's phenotype is being impacted by temperature.
Describe the phenotype.A user's phenotype is the culmination of all of their traits or distinguishing qualities. The phenotype of an organism is only impacted by its genotype, which is directly acquired from its parents. Phenotype can be impacted by environmental factors as well. Three phenotype classes—AA, Aa, and aa—can be derived from a single locus and additive effects.
How can you recognize a phenotype?The genotypes and expressed genes of a person, as well as visual qualities like eye color, body type, height, and traits of the hair, form the phenotype. Environmental factors have an impact in addition to genetics.
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If a specimen is found to have large quantities of bilirubin, then it should be stored away from ________, which causes the breakdown of bilirubin, until further testing.
If a specimen is found to have large quantities of bilirubin, then it should be stored away from light, which causes the breakdown of bilirubin, until further testing.
Bilirubin is a waste product produced when red blood cells are broken down. Bilirubin is the final product of heme metabolism. The liver is the site of bilirubin metabolism. Hemoglobin is broken down into heme, converted to biliverdin, and finally to unconjugated bilirubin (not water soluble). bilirubin broken down by light
Light therapy involves shining a Bili Light fluorescent light directly onto your bare skin. Certain wavelengths of light can break down bilirubin into a form that the body can excrete in urine and feces.The light appears blue. Newborns are held in the light with no clothes or only diapers
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TRUE/FALSE the reason that the human species exhibits a very low level of genetic variation is due to the fact that homo sapiens is a relatively recent species.
True, the reason that the human species exhibits a very low level of genetic variation is due to the fact that homo sapiens is a relatively recent species.
Do humans exhibit little genetic diversity?One in 1,000 DNA base pairs (0.1%) is the average amount of genetic variation between any two people, which is perhaps the most frequently mentioned statistic on human genetic variety. The genetic diversity of humans is significantly smaller than that of many other species, including the chimpanzee, our closest living relative.
Is this the cause of variety in all people?Germ cells, such as sperm and eggs, as well as somatic (all other) cells, are prone to variation. Only variation that develops in germ cells can be passed from one person to the next and ultimately have an impact on population dynamics and evolution. Major sources of variation include recombination and mutation.
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in certain plants, tall is dominant to short. if a heterozygous plant is crossed with a homozygous tall plant, what is the probability that the offspring will be short? group of answer choices
There is " 0" ( zero) probability that the offspring will be short.
What is heterozygous ?
It contains two different copies of alleles coding for particular traitIt contains different alleles for a trait. Both dominant and recessiveSelf-fertilization results in different combination of traits over next generationsTwo types of gametes are producedThe heterozygous alleles can show complete dominance, codominance or incomplete dominanceWhat is homozygous?
It has two same copies of same allele coding for a particular trait.contains only one type of allele, either dominant or recessiveSelf-fertilization results in repetition of the same traits over generationsOnly one type of gamete is producedIt can be homozygous dominant or homozygous recessiveAlleles for tall character is T and t
Heterozygous tall plant: Tt
Homozygous tall plant : TT
homozygous short plant : tt
cross is shown below
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Explain how biology can be studied from a microscopic approach to global approach brainly.
In my opinion, we can study biology from a microscopic approach to a global approach during pandemics, just like what is happening around us.
How did this occur ?
In biology, the microscopic world and the macroscopic world are related, and they should be given equal attention. Here are some of the things that we are currently doing to address the problem with the pandemic, with the help of our microscopic and global approach:
Inside the laboratories around the world, scientists are using a powerful electronic microscope to study the structure of the virus that causes COVID-19.Whenever they learn something new, the information would be forwarded to governments around the globe. This will prompt them to decide what actions to take.Every information given by the scientists are relayed to the public.The cycle continues, until a breakthrough is finally discovered on how to eliminate the virus.To know more about Pandemics from the given link
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If a forensic scientist is trying to determine if fingerprints are on any surfaces, what macromolecule would they be testing for?.
They would be testing for Lipid macromolecules.
Lipid macromolecules are a class of macromolecules that are nonpolar and hydrophobic in nature.
I hope this helps!!!
