Q: What are models good for? Choices: - they are expensive to make - they are identical to the real thing - they are independent variables - they give us an idea of what the real thing is like A:
they give us an idea of what the real thing is like

Q: Genetic diversity in a population comes from two main sources - sexual reproduction and what else? Choices: - radiation - education - pathogen - mutation A:
mutation

Q: Q: What class of acids do carboxylic acids fall under? Choices: - hydrochloric acids - inorganic acids - carbolic acids - organic acids A:
A: organic acids

Question: Q: What is defined as a saturated layer of rock or soil? Choices: - river bank - artesian well - culvert - aquifer A:
Answer: aquifer

*Question*
Q: What do you call resources that can be replaced at the rate they are being used? Choices: - viable - abundant - innovative - renewable A:
**Answer**
renewable

*Question*
Q: Loss of muscle mass due to breakdown of structural proteins is known as what? Choices: - distrophy - mutation - exhaustion - atrophy A:
**Answer**
atrophy