As Maria discovered, all butterflies and moths undergo complete metamorphosis, which means they move through four very different ______: egg, larva, pupa, and adult. A. phases B. periods C.

As Maria discovered, all butterflies and moths undergo complete metamorphosis, which means they move through four very different ______: egg, larva, pupa, and adult.

A. phases 
B. periods 
C. durations  
D. stints

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Chọn A

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