I think the correct answer from the choices listed above is option B. Keratin is the protein in mammals which shows only a primary and secondary structure. Keratin is a fibrous protein forming the structural constituent of hair, feathers, hoofs, claws and many others.
Answer:
The answer is the fruit fly groups do not successfully reproduce to make viable offspring.
Explanation:
Usatestprep
<span>The independent variable is the only factor in the experiment that the scientist will change. The effect of the changes in this independent variable in regards to the effect on the dependent variable/s are then observed, and the outcome of the experiment will then be determined from this.</span><span />
