(Q).
If mutagens cause mutations in DNA, then what cause mutations in DNA? Answer choices: - Pesticides - smoking - chromosomes - protein - cigarettes - mutagens - amino acids - animals
(A).
mutagens

(Q).
If the digestive system uses catabolism to produce nutrients for the body, then what does the digestive system use to produce nutrients for the body? Answer choices: - Proteins - Enzymes - oysters - catabolism - lungs - ice cubes - hair - nutrients
(A).
catabolism

(Q).
If most electricity in the United States is made in coal power stations, then what kind of power stations create most of the electricity in the United States? Answer choices: - coal - making - motors - energy - cars - made - heat - two
(A).
coal