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Some animals have a well-defined skeleton and a backbone. Under which category of animals are they placed? A. vertebrates B echinoderms C. Invertebrates D. arthropods
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Some animals have a well-defined skeleton and a backbone. Under which category of animals are they placed?

A. vertebrates
B echinoderms
C. Invertebrates
D. arthropods

User Chrisjan Lodewyks
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1 Answer

9 votes

Answer:

A

Step-by-step explanation:

vertebrates are animals with backbones

User PauliL
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