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Which of these is NOT a characteristic of mammals? a. hair c. ectotherms b. large brain d. endotherms
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Which of these is NOT a characteristic of mammals? a. hair c. ectotherms b. large brain d. endotherms

User Kyle Pfromer
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Most mammals, including humans are endothermic homeotherms while most fish are ectotherms so the right answer would be ectotherms.
User Bmahf
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