1. Bison feed on grass in a prairie ecosystem while the wolves prey on the bison. How
would drought affect the carrying capacity of
bison in this ecosystem?

A increase because fewer wolves would prey on bison

B decrease because more wolves would prey on bison

C. Increase because bison would have more available food

D decrease because fewer plants would be available as food

D decrease because fewer plants would be available as food

Explanation:

According to this question, Bison is a primary consumer that feeds on grass in a prairie ecosystem while wolves are secondary consumers that feed on the Bisons. The occurence of a drought i.e. Lack of water, will cause natural vegetation to reduce drastically.

The carrying capacity (average population size) of bisons will decrease in the ecosystem because fewer plants would be available as food for them as primary consumers.