A scientist investigates if a drug can help the immune system.

The scientist measures the activity of phagocytes with the drug and without the drug.

The graph shows the scientist’s results.

The scientist claims the results proved the drug helps white blood cells defend the body against diseases.

Comment on the scientist’s claim.

A scientist investigates if a drug can help the immune system The scientist measures the activity of phagocytes with the drug and without the drug The graph sho class=