20. Intext question VIII

 

a. When we kill all the organisms at a trophic level, the food chain can end, and the ecological balance will be disrupted.

 

b. If the herbivorescarnivoresautotrophs were killed, the nutrient cycle in the area would be disrupted. If carnivoresautotrophsherbivores are killed, predators will be unable to obtain food and will die. If herbivoresautotrophscarnivores are destroyed, herbivore populations will increase to unsustainable levels.