The answer is “have a friend read study questions aloud to her and answer them.”
<span>Something that affects the structure or function of an organism is referred to as a _A.Modifier_? </span>
<span>(Think of Modifier as it change something in organisms)</span>
<span>Hope to help</span>
<span>:D </span>
Answer:
2.Smoking can cause cancer and then block your body from fighting it: Poisons in cigarette smoke can weaken the body's immune system, making it harder to kill cancer cells. When this happens, cancer cells keep growing without being stopped. Poisons in tobacco smoke can damage or change a cell's DNA.
Every seventh time a rat presses a lever, it receives food pallets.
