Q: What is the term for the force exerted by circulating blood on the walls of blood vessels? Choices: - circulation pressure - heart pressure - blood energy - blood pressure A:
blood pressure

Q: Air temperature changes as what increases? Choices: - pressure - density - salinity - altitude A:
altitude

Q: Q: Friction does negative work and removes some of the energy the person expends and converts it to which kind of energy? Choices: - erosion - hydro - evaporation - thermal A:
A: thermal

Question: Q: Which part of the earth is made of the rigid, brittle, solid crust and uppermost mantle? Choices: - troposphere - thermosphere - atmosphere - lithosphere A:
Answer: lithosphere

*Question*
Q: Are vesicles larger or smaller than vacuoles? Choices: - larger - narrower - wider - smaller A:
**Answer**
smaller

(Q).
Q: Examples of organ systems in a human include the skeletal, nervous, and what? Choices: - affecting systems - nervous systems - immune systems - reproductive systems A:
(A).
reproductive systems