The best and most correct answer among the choices provided by your question is the fourth choice or letter D. Reptiles are the most critically endangered animal group. Their population is threatened due to illegal activities done by man like poaching.
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we would all die becuase there would be no oxogen that plants produce and no carbon that we exhale.
Seldom seen in adults treatment with insulin injections
The best answer among the following choices to fill in the blank would be A).