Question

question 15
1 pts
when designing an experiment measuring the number of dead cells as a function of some toxin exposure, what type of variable is the number of dead cells?

independent variable

controlled variable

dependent variable

random variable

Explanation:

In an experiment, a dependent variable is the outcome measured and expected to change based on the independent variable (here, toxin exposure). The number of dead cells is being measured as a function of toxin exposure, so it depends on the toxin exposure level. Independent variables are the factors manipulated, controlled variables are kept constant, and random variables involve chance variation unrelated to the experimental input here.

Answer:

Dependent variable