Compare your forearm, hand, and fingers to a neuron. in such an analogy, the axon is your:

Forearm

I'm not sure where i read this but i did and its making me write more words than necessary.

can you give me more to work here with plzs and you

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