*Question*
Q: The smallest unit of structure and function in all living organisms is what? Choices: - mineral - compound - particle - cell A:
**Answer**
cell

*Question*
Q: What does interstellar medium consist of? Choices: - gravitational waves - the strong force - dark matter - thinly spread gas and dust A:
**Answer**
thinly spread gas and dust

*Question*
Q: Body waves and surface waves are the two major types of what, which occur during earthquakes? Choices: - tidal waves - current waves - sound waves - seismic waves A:
**Answer**
seismic waves

*Question*
Q: What play several important roles in the human body? Choices: - cells - tissues - organs - lipids A:
**Answer**
lipids