Question

water every day in addition to soaking them would help them grow. ellie measured the initial weight of all six air plants. then, for the next month, she continued to soak all of the air plants once a week. she also sprayed three of the plants every day. at the end of the month, ellie measured the weights of the plants again. complete the sentence. in this experiment, the plants that were only soaked in water were part of ____. a control group an experimental group

Explanation:

In an experiment, a control group is the set of subjects that are not exposed to the test variable (here, daily spraying) and are used as a baseline for comparison. The plants that only received the standard weekly soaking are not given the experimental treatment, so they form the control group.

Answer:

a control group