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Biology, 17.12.2020 18:20 mgendin

Which are characteristics of mammals? Check all that apply. internal fertilization
three-chambered heart
I endothermic
highly developed nervous system
several nearly hollow bones
I always live on land


Which are characteristics of mammals? Check all that apply.

internal fertilization
three-chambere

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Which are characteristics of mammals? Check all that apply. internal fertilization
three-cham...
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