What requires a microscope in order to be seen?\nOptions:\n- (A) fungi\n- (B) cells\n- (C) mildew\n- (D) gasoline\n- (E) fungus\n- (F) matter\n- (G) telescopes\n- (H) sunlight
Hmmm, let me think. I don't want to be wrong, so I got to be careful.
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Cells vary in size as well as shape, but all cells are very small. An embryo is so small that it requires a microscope in order to be seen. A cell requires a microscope in order to be seen. The answer: (B).
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