What occurs during periods of adaptive radiation

Adaptive radiation is a form of evolution where a single species evolves into several different species. As a result, the development of new species is what occurs during periods of adaptive radiation.

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

the answer is b.) hydrogen bonds between bases.