*Question*
Q: What molecules are usually insoluble in water? Choices: - polar - acids - ions - non-polar A:
**Answer**
non-polar

*Question*
Q: What is defined as the product of a force times the distance over which the force acts? Choices: - matter - motion - energy - work A:
**Answer**
work

*Question*
Q: What three things do animals require in order to survive? Choices: - Sex, Love, Food - Shelter, Food and love - Immunity, blood, water - air, water, food A:
**Answer**
air, water, food

*Question*
Q: What is the term for sheets of cells that form a boundary between a mass of cells and a cavity or space? Choices: - mucus - myelin - ganglion - epithelia A:
**Answer**
epithelia