Hello there! do you have any choices? if so would you please add them.
The answer to the question above is a cell.
Unequal reproductive success - Accumulation of favorable traits over time. Unequal reproductive success. heritable traits best suited to the local environment are more likely to survive and reproduce. Accumulation of favorable traits over time.
Answer:
A blood donor is a person who donates blood and a blood recipient is a person who receives donated blood.
Explanation: