Ques:Q: Vertebrates lacking what structures often use lungs for gas exchange? Choices: - pores - nostrils - spores - gills A:

Ans:gills
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Ques:Q: Massive quanta, like electrons, also act like macroscopic particlessomething we expect, because they are the smallest what? Choices: - regiments of matter - battalions of matter - depth of matter - units of matter A:

Ans:units of matter
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Ques:Q: What important organelle (that would otherwise be centrally located and crucial to the cell's survival) do prokaryotic cells lack? Choices: - electrons - molecules - protons - nucleus A:

Ans:nucleus
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Ques:Q: What is defined as the mass per unit volume of a substance? Choices: - weight - diameter - height - density A:

Ans:
density
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