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Minchanka [31]
3 years ago
15

Animals are often grouped as A. vertebrates or invertebrates. B. heterotrophs or autotrophs. C. walkers or crawlers. D. swimmers

or runners.
Biology
2 answers:
Andrews [41]3 years ago
4 0
The answer is A. vertebrates or invertebrates

Alona [7]3 years ago
3 0
The answer is A, vertebrates or invertebrates. 
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