Which one of the following is a defining characteristic of animals but not of plants?

A. Animals, but not plants, are heterotrophs
B. Animals, but not plants, are prokaryotes
C. Animals, but not plants, are eukaryotes
D. Animals, but not plants, are autotrophs


Answer: A

Biology & Microbiology

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Fibroblast cells are a good model system for studying muscle differentiation because

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