The answer you are looking for is protein.
Answer:
c
Explanation:
Natrual selection is survival of the fittest, so only the best suited for that environment survive.
Answer:
gene flow is the transfer of genetic variation from one population to another.
option D
Muscle fibers can be divided into two general categories: Category I, which is sluggish, and Type II, which is quick.There are three primary fiber types in type II, which is further divided into type IIA (oxidative) and type IIX (glycolytic).These fibers exhibit comparatively unique features in terms of metabolism, contractility, and motor units.
<h3>
Which cell types make up skeletal muscle?</h3>
These cells to make up muscular tissue are referred to as myocytes, or muscle cells.The human body contains three different types of muscle cells: cardiac, skeletal, or smooth.
<h3>How many different types of cells exist?</h3>
Your body has roughly 200 different kinds of cells.These cells help to build your tissues and organs as well as your immune system, which works to protect your body.Your body regularly replaces its dead cells with new ones.
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Answer:
B. Nature selects against only harmful traits.
Explanation:
Natural selection only acts on traits that impact reproductive success. Nature chooses against just unsafe attributes. The vestigial structures do not hurt the living being.
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