Select the best answer choice what do the arrows indicate

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heat a spark and oxygen

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

b is dominant over the allele for the white fur.

50% lit on the left side