Question

kirk often saw woodpeckers perched in trees in his backyard, but he never saw them at his bird feeders. kirk usually filled his feeders with sunflower seeds. he wondered if he could attract woodpeckers by adding a different type of food to the feeders. to test this idea, kirk gathered eight identical bird feeders. he filled four with sunflower seeds. he filled the remaining four feeders with crushed peanuts. kirk then placed the bird feeders in his backyard. over the next five days, he counted the number of woodpeckers that visited each bird feeder each morning. complete the sentence. in this experiment, the number of woodpeckers that visited the bird feeders was a dependent variable an independent variable

Explanation:

In an experiment, the dependent variable is what is measured and affected by other factors. Here, the number of woodpeckers visiting the feeders is being measured and is likely affected by the type of food (independent variable).

Answer:

a dependent variable