Consider the food chain of grass → grasshopper → mouse → snake hawk. about how much of the chemical energy fixed by photosynthesis of the grass (100 percent) is available to the hawk? .
a) 0.01%
b) 0.1%
c) 1% .
d) 1090

the answer is tropical areas. the tropical areas obtain more

radiant energy from the sun than they lose to space through terrestrial

radiation, and vice versa for polar areas. earth has an energy remaining in the

tropics and an energy scarcity for the polar areas.

explanation:

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 dont know it at allnow im just getting points at this pint