On a global basis, which of the following is the largest reservoir of carbon?

a. atmosphere
b. vegetation
c. sediments
d. fossil fuels

uh two lol

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