Please help me and thanks

from bottom to top

second level below the top

polar bears eat seals

carbon and oxygen to make protein

chlorophyll

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

i think its y= -4x-14