Q: Concentration is the removal of solvent, which increases the concentration of what? Choices: - vapor - sodium - Water - solute A:
solute

Q: What do most amphibians breathe with as larvae? Choices: - pores - lungs - nasal passages - gills A:
gills

Q: Q: What simple machine consists of two connected rings or cylinders, one inside the other, which both turn in the same direction around a single center point? Choices: - pully - bloom and axle - spoke - wheel and axle A:
A: wheel and axle

Question: Q: Herbivores and the bacteria that live in their intestines demonstrate a two-way beneficial relationship called what? Choices: - parasitism - pragmatism - syncretism - mutualism A:
Answer: mutualism

*Question*
Q: What is harmless water vapor, for a powerplant? Choices: - wind - plasma - fog - steam A:
**Answer**
steam

*Question*
Q: Secondary consumers are usually carnivores that eat what? Choices: - soil - plants - dead material - primary consumers A:
**Answer**
primary consumers