*Question*
Q: What does the esophagus produce for lubrication? Choices: - synovial fluid - phloem - bile - mucous A:
**Answer**
mucous

*Question*
Q: What is the term for evolution over geologic time above the level of the species? Choices: - mutation - speciation - microevolution - macroevolution A:
**Answer**
macroevolution

*Question*
Q: The number of waves that pass a fixed point in a given amount of time is referred to as what? Choices: - tendency frequency - wave speed - wave harmonics - wave frequency A:
**Answer**
wave frequency

*Question*
Q: What are the two types of optical telescopes? Choices: - reflecting and recapitulating - reflecting and layering - refracting and compound - reflecting and refracting A:
**Answer**
reflecting and refracting