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You have been observing an experimental population of nematodes that is given a set amount of a new food type at a given time.Over time,you notice that the carrying capacity appears to be increasing,as the food can support more individuals.
-You notice that the current population consists of nematodes with the same mean body size as ones from generations ago,but with a reduced variance.What type of selection likely has been operating?

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You have been observing an experimental population of nematodes that is given a set amount of a new food type at a given time.Over time,you notice that the carrying capacity appears to be increasing,as the food can support more individuals.
-You notice that the current population consists of nematodes with the same mean body size as ones from generations ago,but with a reduced variance.What type of selection likely has been operating?

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