Q: Some compounds containing hydrogen are members of an important class of substances known as what? Choices: - proteins - ions - bases - acids A:
acids

Q: What kind of reproduction is vegetative reproduction? Choices: - sexual - meiosis - mitosis - asexual A:
asexual

Q: Q: What evolutionary strategy enables substantial activity during sleep for some animals? Choices: - hibernation - reproduction - mutation - adaptation A:
A: adaptation

Question: Q: What is the term for any way that an animal interacts with other animals or the environment? Choices: - animal biology - animal way - immunity - animal behavior A:
Answer: animal behavior

*Question*
Q: Space telescopes avoid such problems completely since they orbit outside the what? Choices: - ozone layer - galaxy - earth's crust - atmosphere A:
**Answer**
atmosphere

(Q).
Q: The golgi apparatus works like a mail room by receiving and sending what? Choices: - acids - particles - enzymes - proteins A:
(A).
proteins