*Question*
Q: What chambers are responsible for pumping blood out of the heart? Choices: - vacuoles - cells - valves - ventricles A:
**Answer**
ventricles

*Question*
Q: Glycolysis harvests chemical energy by oxidizing glucose to what? Choices: - chlorophyll - oxygen - cellulose - pyruvate A:
**Answer**
pyruvate

*Question*
Q: What organ is subdivided into ascending, descending, transverse and sigmoid parts? Choices: - heart - uterus - lungs - colon A:
**Answer**
colon

*Question*
Q: Salt in seawater causes it to have greater what, which is also affected by temperature and pressure? Choices: - mass - volume - area - density A:
**Answer**
density