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Kevin is studying predator-prey interactions. One day he notices a spider eating a cricket caught in its web. Later that day, a bird eats the spider. How many populations are involved in his study?

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looringhighjump

Answer: 3.

Explanation:

A population refers to the total number of organisms of the same species, that inhabit a distinct area at the same time, and have the capacity of interbreeding. In Kevin´s study, we have three different populations involved: spiders, crickets, and birds. Kevin is probably developing a study on population biology, focusing on the group dynamics between populations.

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