Question

the passage below describes an experiment. nick liked to hike, but he was often bothered by mosquito bites. he read that rubbing lavender flowers on your skin can repel mosquitoes. nick wanted to find out if lavender flowers work better as a mosquito repellent than store - bought bug spray. so he sprayed bug spray on one of his arms and rubbed lavender flowers on his other arm. then, he went for a hike. when he got home, he counted the number of new mosquito bites on each arm. nick repeated this test each afternoon for one week. a mosquito biting a human complete the sentence. in this experiment, the type of mosquito repellent used was an independent variable a dependent variable

Explanation:

In an experiment, the independent variable is what the experimenter changes or manipulates. Here, Nick changes the type of mosquito - repellent (bug spray vs. lavender flowers) to see its effect on the number of mosquito bites. The number of mosquito bites is the dependent variable as it depends on the type of repellent used.

Answer:

an independent variable