Makes organisms grow bigger.
a. an increase in the size of a cell
b. the addition of cells
c. an increase in the size of the nucleus in a cell
d. the addition of chromosomes

Why is the theory of evolution important? it disproves all other theories about how life began. it provides a topic for debate. it is a unifying concept in biology. it explains how life began. i know for sure, it is not "it is a unifying concept in biology."

Everything that surrounds a particular organism

Which of the following is caused by reproductive isolation within a species? a. a decrease in gene flow b. an increase in genetic flow c. a decrease in genetic drift d. an increase in gene flow