a. herbivores provide energy for the autotrophsb. consumers synthesize ATP from lightc. the populations of predators are dependent on the populations of their preyd. the number of autotrophs equals the # of heterotrophs. Created by Victoria. science-mathematics-en - biology-en

c. the populations of predators are dependent on the populations of their prey(Oh man, here I was all set to write a nice little essay on how climax communities maintain the local environment to sustain themselves, rather than changing it to make the local environment suitable for something else to live there).