The answer is B. Speed up chemical reactions. Hope this helps.
Answer:
The correct answer is - D. a reproductive advantage in the current environment.
Explanation:
Evolutionary adaptations are the adjustments and alteration of the physical structures of the organisms or their traits according to the environment change and it is hereditary. These adjustments or changes help in improving its ability to survive and reproduce and increase its number to pass the genes.
In other words, Evolutionary adaptations are characteristics or traits that are hereditary and enhance an organism's ability to survive and reproduce in a particular environment.
If you look at the pH scale hydrogen are going to be on your acidic side and your oh is going to be on your base side
B. they can fertilize eggs internally, so the eggs are protected inside the female
