*Question*
Q: Models may be physical, conceptual, or what else? Choices: - experimental - fundamental - theoretical - mathematical A:
**Answer**
mathematical

*Question*
Q: What decides what may enter or leave a cell? Choices: - nucleus - cell wall - golgi apparatus - cell membrane A:
**Answer**
cell membrane

*Question*
Q: What term is used to describe the line of latitude right in the middle of the planet? Choices: - Prime Meridian - orbital - pole - equator A:
**Answer**
equator

*Question*
Q: Maintaining a high metabolic rate takes a lot of what? Choices: - food - calories - fuel - energy A:
**Answer**
energy