Question

the passage below describes an experiment. andy grew ten mint plants on his back porch. he grew each plant in its own pot. andy noticed that his plants did not grow many leaves, and he wanted to see if earthworms could help them grow more. andy divided his ten plants into two equal groups. he added three earthworms each to the soil in five of the pots. he did not add any earthworms to the other five pots. two months later, he counted the number of leaves on each of the ten plants. complete the sentence. in this experiment, the mint plants that got earthworms were part of ________ a control group an experimental group

Explanation:

In an experiment, the experimental group is the one that receives the variable being tested. Here, earth - worms are the variable being tested, and the mint plants with earth - worms are the ones receiving the variable.

Answer:

an experimental group