Author Question: Which of the following is (are) unique to animals? A) cells that have mitochondr (Read 545 times)

hummingbird

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Which of the following is (are) unique to animals?
A) cells that have mitochondria
B) the structural carbohydrate, chitin
C) nervous conduction and muscular movement
D) heterotrophy
E) Two of these responses are correct.



geoffrey

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