(Q).
Q: Osmosis is driven by the imbalance of what? Choices: - precipitation - isolation - evaporation - water concentration A:
(A).
water concentration

(Q).
Q: What oily substance prevents the hair and skin of living things from drying out? Choices: - pus - progesterone - pancreatic enzymes - sebum A:
(A).
sebum

(Q).
Q: Ionic bonds between two atoms require one metal and one what? Choices: - liquid - gas - metallic - nonmetal A:
(A).
nonmetal