7
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Relationships Among Organisms

Question 7 • CA-Life Science B (High School)

There are 110 goldfish in the pond when the availability of resources decreases. The carrying capacity drops from 125 to 90 goldfish. Which of the following statements is true under these conditions? Check all that apply.

Answer
A
The pond can support a population size of 125 goldfish.
B
The pond can support a population size of 110 goldfish.
C
The pond can support a population size of 90 goldfish.
D
The pond can support a population size of 75 goldfish.
E
The pond can support a population size of 50 goldfish.

Explanation

The new carrying capacity is 90 goldfish, meaning the pond can sustainably support up to 90. Therefore, populations of 90, 75, and 50 are supportable. It cannot support 110 or 125 under the reduced-resource conditions because both exceed the new carrying capacity.

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