Many plants, animals and microorganisms live and interact in a freshwater reservoir. Consider a group that includes hay sticks, zebra mussel, bottom silt, carp, and ciliates. How will an increase in the number of ciliates affect the number of carp?
1. Answer to the question: the number of carp will increase;
2. Explanation, for example: the amount of its food supply – zebra mussel – will increase.
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