Ques: Q: Vitamins are organic compounds that are essential in very small amounts for the maintenance of normal what? Choices: - respiration - pigments - calcium - metabolism A:
Ans: metabolism

Ques: Q: Oxytocin, which stimulates the contractions of labor, is a type of what? Choices: - metabolite - inhibitor - steroid - hormone A:
Ans: hormone

Ques: Q: Through which process do behaviors that improve fitness increase? Choices: - mutation - succession - adaptation - natural selection A:
Ans: natural selection

Ques: Q: Because of its composition, oil does not do what in water? Choices: - explode - separate - form - dissolve A:
Ans:
dissolve