The source of genetic variation that occurs during meiosis and results in new combinations of alleles is known as
a.
genetic recombination
b.
genetic drift
c.
gene flow
d.
natural selection

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

whats the answer to your question?

i believe your answer would be c.. : )