Answer: To an evolutionary biologist, fitness simply means reproductive success and reflects how well an organism is adapted to its environment.
Explanation: Biological or Darwinian fitness is defined based on the specimen's ability to reproduce and generate viable offspring.
which of the following is an incorrect match? group of answer choices lysosomes - cellular digestion ribosomes - protein synthesis golgi apparatus - protein alteration and packaging smooth endoplasmic reticulum - storage of water mitochondria - production of cellular atp
An inaccurate match for the following is Water is stored in the smooth endoplasmic reticulum.
Which plant has the most protein?Green peas are the vegetable with the highest protein content. Although technically speaking they are legumes, due to their vivid green color and delicate flavor, many of us believe them to be vegetables. However, you might be shocked to learn how much protein is in a cup of green peas—about 8 grams.
Will two eggs provide enough protein?12 grams of satiating protein are provided by two eggs. Eat the entire egg if you want to get all the protein benefits since half of it is in the yolk. Recent studies have shown that eating whole eggs increases muscle strength and helps us develop more lean muscle.
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when a major evolutionary event takes place and a new species is formed, what has taken place?
What does "moving slow" mean to a geologist? - pls answer in RACE
"Moving slow" means to a geologist that the landslide may be dormant and stable which is based on the landslide's appearance and short-term movement monitoring.
Who is a Geologist?This is referred to as a scientist who studies the solid, liquid, and gaseous matter that constitutes Earth and other terrestrial planets, as well as the processes that shape them.
Landslides may move so slowly that their movement is imperceptible to humans and a geologist who discovers that a landslide is slow moving will have an idea that it is moist likely dormant and stable.
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the small red dots in the simulation could represent which of the answer choices?
It's possible that the small red dots in a simulation could represent choices, but without more context about the simulation it's difficult to say for certain.
Simulations can be used to model a wide range of phenomena, from physical systems to social dynamics. In some simulations, dots or other visual elements may represent discrete entities or choices that are being modeled.
For example, in a simulation of a traffic network, red dots could represent cars or individual drivers making choices about which route to take or when to merge into traffic. In a simulation of a population of animals, red dots could represent individual animals making choices about where to move, what to eat, or who to mate with.
However, it's important to note that the meaning of visual elements in a simulation can vary depending on the specific context and purpose of the simulation. It's always best to consult the documentation or creators of a simulation to better understand the meaning of its visual elements.
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Specific sequence of three nucleotides in a dna or rna molecule are called:__________
Each gathering of three back-to-back nucleotides in RNA is known as a codon, and every codon determines it is possible that one amino is corrosive or a stop to the interpretation cycle.
A codon is a DNA or RNA succession of three nucleotides (a trinucleotide) that shapes a unit of genomic data encoding a specific amino corrosive or flagging the end of protein combination (stop signals).
The mRNA bases are assembled into sets of three, called codons. Every codon has a corresponding arrangement of bases, called an anticodon. Anticodons are a piece of move RNA (tRNA) particles.
This succession is broken into a progression of three-nucleotide units known as codons. The three-letter nature of codons implies that the four nucleotides tracked down in mRNA — A, U, G, and C — can deliver a sum of 64 distinct blends.
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Scott is talking to his friends about what he has learned in his psychology class. They want to hear more about the theory of evolution by natural selection. What should Scott tell them is the main idea of the theory of evolution by natural selection?
a. Organisms that are best suited for their environment will wipe out those that are not suited.
b. Organisms that are poorly suited for their environments will change during their early years to be better suited.
c. Organisms that are poorly suited for their environments will change throughout their lives to become better suited.
d. Organisms that are best suited for their environments will prevail in survival and reproduction.
Organisms that are best suited for their environments will prevail in survival and reproduction. Therefore, option (D) is correct.
What is natural selection?
Natural selection is the process by which organisms that are better adapted to their environment are more likely to survive and reproduce, passing on their advantageous traits to their offspring. Over time, this can lead to the evolution of new species as the frequency of these traits increases in a population.
This means that individuals that have traits that give them an advantage in their environment, such as better camouflage, stronger immune systems, or more efficient ways of finding food, will be more likely to survive and pass on those advantageous traits to their offspring
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Are polar molecules hydrophobic or hydrophilic?
All polar molecules are hydrophilic. Polar molecules are those which have a charge, but they differ from ions (which also carry a charge) in that polar molecules are dipoles. They have a negative charge on one end, and a positive charge on the other.
Because of the unequal distribution of electrons among their atoms, polar molecules like the water molecule (H2O) are possible. When compared to those tiny Hydrogen atoms, oxygen is far more electronegative and larger, hence oxygen's electron density is skewed more in its favor.
According to the general principle that "like dissolves like," a polar molecule would dissolve in a "polar solvent." The solute-solvent interaction and behaviour are explained by hydrophilicity or hydrophobicity. For instance, the term "hydrophobic" refers to molecules that are "water-phobic or water-hating" because they, like oil, do not dissolve in water. Things that are hydrophilic love water.
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the primary water conducting tissue that you would see in a stem cross-section is the
The primary water conducting tissue that you would see in a stem cross-section is the xylem.
Xylem is a complex tissue composed of several types of cells including tracheids, vessel elements, fibers, and parenchyma cells. These cells are responsible for transporting water and dissolved minerals from the roots of a plant to its leaves and other parts of the plant.
The xylem tissue is typically located toward the center of the stem, while the phloem, which is responsible for transporting food and nutrients throughout the plant, is usually found towards the outside of the stem. The xylem cells are typically elongated and arranged in a long, cylindrical shape, forming a continuous tube-like structure.
Overall, the xylem tissue in plants plays a crucial role in maintaining water balance and supporting the growth and survival of the plant.
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imagine a scenario in which you expose a rat to a non lethal dose of sarin. you then expose the same rat to a non lethal dose of atropine. assume that sarin and atropine affect the same populations of neurons in the rat. based solely on their molecular effects, the addition of atropine would likely
Imagine a scenario in which you expose a rat to a non lethal dose of sarin. you then expose the same rat to a non lethal dose of atropine. Assume that sarin and atropine affect the same populations of neurons in the rat. based solely on their molecular effects, the addition of atropine would likely lessen the symptoms of sarin.
What are Symptoms?These are physical or mental feature which is regarded as indicating a condition or a disease.
Inn a scenario where sarin and atropine affect the same populations of neurons in an organism the it means that the addition of atropine would likely lessen the symptoms of sarin as there won't be any equilibrium.
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the hair cell of the cochlea is depolarized when the stereocilia are bent. (True or False)
Answer: True
Explanation:
which of the choices below is the parent cell for all formed elements of blood? which of the choices below is the parent cell for all formed elements of blood? megakaryocyte hematopoietic stem cell polymorphonuclear cell normoblast
Answer:
Hemocytoblast! Hope this helps you.
which models predicted a single dna band after one replication during the meselson and stahl experiment
a. Dispersive
b. Conservative
c. semiconservative
After replication, the semiconservative hypothesis predicts that each molecule will have one old and one new strand.
Which is more conservative, DNA replication?Semi-conservative: The semi-conservative nature of DNA replication is a crucial concept (see Figure 7.2). 7). This indicates that each new generation of an organism's double helix consists of one complete "old" and one complete "new" strand wrapped around one another.
What is the conservative DNA replication model?In this process, the DNA replicates itself to produce multiple copies. Two copies of the same DNA are made using a single template in conservative replication. One of these is made entirely of new DNA, and the other is made of strands of old DNA.
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if mules were no longer sterile but could produce offspring, then there are no other reproductive barriers to overcome.true/false
Answer:
false
Explanation:
another barrier is the difference in chromosme number. a horse has 64 chromosomes, and a donkey has 62. a mule inherits 32 horse chromosomes from mom and 31 donkey chromosomes from dad, for a total of 63 chromosomes
The long, heavy tail of a spider monkey enables the monkey to easily vary its. A) weight. B) momentum. C) inertia. D) center of gravity. E) none of these.
The long, heavy tail of a spider monkey enables the monkey to easily vary its D. center of gravity.
The center of gravity is the point in an object where the force of gravity appears to act. In the case of a spider monkey, the center of gravity is an important factor in determining its balance and stability as it moves through the trees.
Spider monkeys are arboreal primates that spend most of their time in trees, using their long limbs and prehensile tail to move from branch to branch. The tail is able to wrap around branches and provide support, allowing the monkey to shift its weight and maintain its balance. By varying the position of its tail, a spider monkey can adjust its center of gravity and maintain stability as it moves through the trees.
Therefore, the correct answer is D) center of gravity.
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althea has not experienced a menstrual cycle for more than 4 months. what condition applies to althea?
Althea's lack of menstrual cycle for more than 4 months could be indicative of a condition known as amenorrhea, which is defined as the absence of menstruation.
There are two types of amenorrhea: Primary amenorrhea: This is when a woman has not started her menstrual cycle by the age of 16, or by the age of 14 if there are no secondary sexual characteristics (such as breast development) present.
Secondary amenorrhea: This is when a woman who previously had normal menstrual cycles stops menstruating for three or more consecutive cycles, or for a duration of more than 6 months.
There are several potential causes of amenorrhea, including pregnancy, breastfeeding, menopause, hormonal imbalances (such as polycystic ovary syndrome), thyroid disorders, excessive exercise, stress, and certain medications. It's important for Althea to see a healthcare provider to determine the cause of her amenorrhea and any necessary treatment.
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On the basis of energy requirement, which does NOT belong to the group? The Na/k pump. Pure water rushing into celery stalks and bulking them up. GLUTS moving glucose molecules from the bloodstream into cells. Spraying lysol in one room and over time smelling it in a room where is wasn't sprayed.
On the basis of energy requirements, the Na/K pump, which is present in the first option, does not belong to the group as it is an active transporter of sodium and potassium.
What exactly is the Na/K pump?This pump is an active pump, as it uses ATP to drive the outflow of sodium and the inflow of potassium and maintain ionic equilibrium across the cell membrane. It is an active process, but others are not, such as the flowing of water, passive diffusion, etc.
Hence, the Na/K pump, which is present in the first option, does not belong to the group as it is an active transporter of sodium and potassium.
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The question is incomplete, the complete one is below
On the basis of energy requirement, which does NOT belong to the group?
The Na/k pump.
Pure water rushing into celery stalks and bulking them up.
GLUTS moving glucose molecules from the bloodstream into cells.
Spraying lysol in one room and over time smelling it in a room where is wasn't sprayed.
one of the largest threats of infectious disease to humans next to hiv and malaria is the spread of tuberculosis (tb). this is due primarily to
Answer:
increased urbanization coupled with too few screening and control programs.
Explanation:
in what ways can mitochondria adapt to the changing needs of a cell?
A) They can change their location;C) They can change their number;D) They can change their shape; these are the ways that mitochondria adapt to the changing needs of a cell.
Mitochondria are highly dynamic organelles that can adapt to the changing needs of a cell in a number of ways. For example, they can change their location by moving to areas of the cell that require more energy, such as near the nucleus or the cell membrane. They can also change their internal structure, such as by forming more or fewer cristae. Additionally, mitochondria can change their number by either fissioning and dividing into two new mitochondria or merging with other mitochondria. Likewise, mitochondria can also change their shape in response to the demands of the cell. Finally, mitochondria are able to carry out glycolysis, which is the breakdown of glucose to produce energy. This ability to carry out glycolysis enables the mitochondria to provide a cell with energy when energy demands are high.
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complete question:In what ways can mitochondria adapt to the changing needs of a cell?
Choose one or more:
A) They can change their location.
B) They can change their internal structure.
C) They can change their number.
D) They can change their shape.
E) They can carry out glycolysis.
what would have to happen to the chromosomes in interphase in order for the cells to divide again?
Interphase has three stages. G1, S and G2. During S stage of the interphase, the chromosome replicates, so that the DNA is doubled.
Interphase is the stage between two cell division. The daughter cells formed grow and doubles the amount of DNA during this phase. As it was not visible under microscope it was earlier termed as resting phase. But since all the process that lead to cell division happens during this stage, it was renamed as interphase.
In G1 phase of the interphase the daughter cells grows and protein synthesis for replication occurs. The daughter cell will have 12 chromosomes and 12 chromatids during this stage. During S-phase the chromosomes are replicated. Each chromosomes will now have two sister chromatids. Thus the DNA is doubled. It will still have 12 chromosomes, but have 24 chromatids. During G2 phase, the proteins required for mitosis are produced.
So even if the cell remains diploid, the chromosomes are replicated to form two sister chromatid to facilitate cell division.
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examples of natural selection
Answer:
For example, evolving long necks has enabled giraffes to feed on leaves that others can't reach, giving them a competitive advantage. Thanks to a better food source, those with longer necks were able to survive to reproduce and so pass on the characteristic to the succeeding generation.
Explanation:
what mostly multicellular, absorbs nutrients extracellularly?
Extracellular digestion is found in all saprobiontic annelids, crustaceans, arthropods, lichens, chordates, and vertebrates.
Fungi are multicellular, eukaryotic organisms that feed in a heterotrophic manner. They primarily function as decomposers or parasites. Fungi extracellular digestion: Extracellular digestion is the breakdown of food molecules outside of the cell, either with enzymes or mechanically.
Food enters the gastrovascular cavity through the mouth and is digested intracellularly, or within the cytoplasm of the cells lining this cavity. Extracellular digestion is used by humans, as well as other organisms with complex digestive systems.
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how could you treat dead smooth bacteria with these enzymes
Enzymes alone cannot be used to determine DNA, RNA.. However, enzymatic treatments can be used in conjunction with other techniques to analyze the genetic material of bacteria, including dead smooth bacteria.
Here are a few examples of enzymatic treatments that can be used in different ways to isolate and analyze DNA, RNA, or protein from bacteria:
DNA isolation: One common method for isolating DNA from bacterial cells involves enzymatically breaking down the cell wall and membrane using a combination of lysozyme and sodium dodecyl sulfate (SDS). The DNA can then be extracted and purified using other techniques, such as phenol-chloroform extraction or column chromatography. RNA isolation: To isolate RNA from bacterial cells, enzymes such as RNase can be used to degrade the DNA and other cellular components, leaving the RNA intact. The RNA can then be extracted and purified using techniques such as phenol-chloroform extraction or column chromatography. Protein isolation: Enzymes such as proteases can be used to break down the cell wall and membrane of bacterial cells, releasing the proteins inside. The proteins can then be extracted and purified using techniques such as centrifugation or column chromatography. Once DNA, RNA, or protein has been isolated and purified, it can be analyzed using various techniques, such as gel electrophoresis, PCR, sequencing, or mass spectrometry, to determine its identity and properties. These analyses can provide information about the genetic material of the bacteria and help to determine whether DNA, RNA, or protein is the primary carrier of genetic information in the organism.
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The complete question is:
How could you treat dead smooth bacteria with these enzymes to determine DNA, RNA, or protein iw the genetic material?
True or False? level of biodiversity may still be reduced after a species recovers from a threat to its survival is
Genetic Diversity
The correct statement is True. Even after a species recovers from a threat to its survival, the level of genetic diversity within the species may still be reduced.
This is because genetic diversity can be lost due to factors such as inbreeding, genetic drift, and population bottlenecks. Suppose a species experiences a significant decline in population size. In that case, the genetic diversity within that population may be reduced. If the population does not recover sufficiently, the genetic diversity may remain low, even if the species as a whole recovers.
Genetic diversity is essential for the long-term survival of a species because it allows for adaptation to changing environmental conditions, resistance to disease, and the ability to evolve in response to new challenges. When genetic diversity is lost, the population's resilience may be reduced, making it more vulnerable to future threats.
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what are functions of the bacterial cell wall
The cell wall is essential for bacterial growth, maintaining cell integrity and form, and adapting to remodeling.
What is a bacterial cell wall?The bacterial cell wall is made up of peptidoglycan, which serves as a protective barrier for bacterial cells by encasing the cytoplasmic membrane of both Gram-positive and Gram-negative bacteria. Peptidoglycan is a complex structure of polymeric carbohydrates and amino acids that is hard and well preserved.
What is the composition of a bacterial cell wall?The cell wall is mostly made of peptidoglycan (PG), a mesh of polysaccharide strands cross-linked via short peptide bridges bound to the MurNAc residues (Vollmer et al., 2008a).
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Hello pls help me to omplete the diagram of the autotrophic cell below.
In order to complete the diagram of the autotrophic cell below, the correct terms required are:
Carbon dioxide + Water + sunlight (Photosynthesis) ---> Sugar + Oxygen
Oxygen + sugar (Respiration) ---> Water + Carbon dioxide + ATP
What are respiration and photosynthesis?The primary goal of photosynthesis is to use solar radiation to transform carbon dioxide and water into nutrient-rich chemical energy.
The process by which sugar is broken down in the presence of oxygen in the mitochondria of organisms (animals and plants) to release energy in the form of ATP is known as cellular respiration.
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Given how our planet is changing, predict what snakes might look like in future rock layers.
It cannot be predicted with certainty how snakes might look in future rock layers, as evolutionary changes can be unpredictable and depend on a wide range of factors, which are specified below.
What are evolutionary changes?Evolutionary changes are the changes in morphology or physiology of an organism due to changing environmental conditions over time and are inherited to their offspring for increasing the chances of survival.
The few possible scenarios that could lead to changes in snake morphology over time:
Climate change: As global temperatures continue to rise, snakes may be forced to adapt to changing environmental conditions. Habitat loss: As human development continues to encroach on natural habitats, snakes may be forced to adapt to new types of environments. This could lead to changes in their behavior or physical characteristics, such as the development of new types of scales or the evolution of different types of locomotion.Predation pressure: Changes in predator-prey relationships could also drive evolutionary changes in snakes over time. For example, if snakes are facing increased predation pressure from birds of prey, they may evolve longer, more streamlined bodies that are better suited for evading capture.The timescales involved in evolutionary change are often very long, so any changes to snake morphology that occur in the future may not be visible in the rock layers for many millions of years.
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What ribosomes are responsible for synthesis in the cell.
What heterotrophic in biology means?
Heterotrophic organisms in biology are those that rely on other organisms for nutrition and energy.
These creatures must get their energy and nutrition from other sources, like plants or other animals, because they are unable to make their own food.
All branches of the animal world, including humans, contain heterotrophs, which can be either carnivorous or omnivorous. Certain fungi and protists also contain heterotrophs.
Heterotrophs are crucial parts of food webs since they are the main consumers of the nutrients and energy that autotrophs create.
Although they offer energy and nutrition to other creatures in the form of prey, they also serve as the foundation for all higher trophic levels.
All terrestrial and aquatic ecosystems depend on heterotrophic organisms because they serve as the primary conduit between producers and more sophisticated consumers.
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what kinds of molecules require a membrane protein to cross the membrane? under what circumstance does this require energy?
Which complication may occur if the brain tumor obstructs the ventricles?
Hydrocephalus
If the ventricles are obstructed, the patient may develop hydrocephalus. This can be treated by use of a ventricular shunt.
If a brain tumor obstructs the ventricles, it can lead to a buildup of cerebrospinal fluid (CSF) in the brain, causing a condition known as hydrocephalus.
What is hydrocephalus?
Hydrocephalus is a medical condition in which there is an excessive accumulation of cerebrospinal fluid (CSF) in the brain. Cerebrospinal fluid is a clear, colorless fluid that surrounds the brain and spinal cord, providing cushioning and nourishment to these vital organs. Normally, CSF circulates through the brain and spinal cord, and is eventually absorbed into the bloodstream.In hydrocephalus, the accumulation of CSF can cause increased pressure within the brain, leading to symptoms such as headaches, nausea, vomiting, blurred vision, and difficulty with balance and coordination. Hydrocephalus can occur in individuals of all ages, but it is most common in infants and older adults.If a brain tumor obstructs the ventricles, it can lead to a buildup of cerebrospinal fluid (CSF) in the brain, causing a condition known as hydrocephalus. Hydrocephalus can increase pressure within the brain and cause symptoms such as headaches, nausea, vomiting, blurred vision, and difficulty with balance and coordination. Treatment typically involves the placement of a ventricular shunt, which is a surgical procedure that involves the insertion of a thin tube to drain excess fluid from the brain and redirect it to another part of the body, such as the abdominal cavity.
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