Answer:
an increase in genetic variation
Explanation:
The answer is b. is under purifying selection
A. Insulin as it is a human hormone produced in the pancreas to the liver....
Hope this helps ya
Answer:
A major obstacle life would have to overcome is having only a limited amount of natural light and then the rest of the time is darkness.
People's daily experiences can contribute to their belief that earth/ species do not change because we are changing with it as it is happening. Also the changes happen gradually so you can't constantly see to believe it.
