Look at the energy pyramid shown in the lesson. Suppose a trout eats a smelt and then a human eats the trout. About how many of the original 1000 calories contained in the algae reach the human? How does this compare to a situation in which the human ate the smelt directly?

i think it is dna, i'm not totally sure but i think it might be.

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

lipid

explanation: