In a population, when the birthrate becomes higher than the death rate, the population’s growth rate
a. decreases.
b. increases.
c. slows to a stop.
d. levels off and remains constant.

How does natural selection change thephenotypes within a population over time?

Plz ! for many generations farmers in north america have been choosing to cross corn plants with large ears of corn each year this results in the new generation of plants also growing large ears of corn. what is the technique called? a. selective breeding. b. natural selection. c. mitosis. d. asexual budding.

What happens during interphase? (1)the nucleus grows to its full size. (2)the cell grows to its full size. (3)the nucleus divides into two nuclei. (4)the cell divides into two cells.