Question

what would be the independent variable?
a) experimental control
b) number of dead cells
c) compound concentration
d) number of cells

Explanation:

An independent variable is the factor intentionally changed or manipulated in an experiment to test its effect on another variable. Compound concentration is the variable a researcher would deliberately vary to observe impacts like cell death or cell count, making it the independent variable here. Experimental control is not a variable, while number of dead cells and total number of cells are dependent variables that respond to the changed compound concentration.

Answer:

c) Compound concentration