B. mass extinctions happen when populations crash due to overpopulation while background extinctions are more likely to result from disease.
Answer:
A
Explanation:
A gene holds the instructions that forms the proteins in our bodies and these proteins are used for our traits and bodies.
Answer:
False (SDS breaks noncovalent interactions)
True, causal contact is safe and does not spread HIV
Answer: the beaks of the finches are adapted to the way the bird usually gets food. :) good luck!
