(Question)
Q: In earthworms, the skin serves as what type of organ? Choices: - kidney - reproductive - excretory - respiratory A:
(Answer)
respiratory

(Question)
Q: The resultant solution will contain the same amount of solute but a greater amount of what? Choices: - calcium - liquid - pigment - solvent A:
(Answer)
solvent

(Question)
Q: What is the opposite of rarefaction zones, where air molecules in waves are loosely packed? Choices: - molecules zones - pressure wave - measurements zones - compression zones A:
(Answer)
compression zones