Ques: Q: What is produced by the sebaceous glands? Choices: - pheromone - sperm - progesterone - sebum A:
Ans: sebum

Ques: Q: Smog is one example of what type of pollution? Choices: - light - energy - sound - air A:
Ans: air

Ques: Q: What phenomenon involves the forcing of a substance into a cell against its concentration gradient? Choices: - active absorption - osmosis - secondary transport - primary active transport A:
Ans: primary active transport

Ques: Q: What is a molecule with two fatty acids and a modified phosphate group attached to a glycerol backbone? Choices: - carbohydrate - polymer - amino acid - phospholipid A:
Ans:
phospholipid