Question

multiple choice 3 points
growth of bacteria over time
the dependent variable in this experiment is —
number of bacteria
time of incubation
type of bacteria
culture number

Explanation:

A dependent variable is the measured outcome in an experiment, which changes in response to the independent variable. In this graph, the number of bacteria is measured as time (the independent variable) changes, so it is the dependent variable.

Answer:

A. Number of bacteria