Question

select all the correct answers.
blue jays and crows eat caterpillars and mice. if the number of blue jays increases, what are the two likely effects on other populations?
the number of crows will increase.
the number of mice will decrease.
the number of mice will increase.
the number of caterpillars will decrease.
the number of caterpillars will increase.

Explanation:

Blue jays and crows are competitors (both eat caterpillars and mice). If blue jays increase, they will consume more prey (caterpillars and mice). This leads to a decrease in the number of prey (mice and caterpillars). The number of crows is likely to decrease (due to less food available from competition with blue jays, not increase).

Answer:

• The number of mice will decrease.
• The number of caterpillars will decrease.