7. Which one is warm-blooded animal
(a) Rat/human being (b) Earthworm
(c) Fish (d) frog
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earthworm is a correct answer
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Answer:(a) Rat
rat belongs to class Mammalia which is itself characterized by warm-blooded animals who can control their body temperature irrespective of the environmental temperature. Earthworms belong to non-chordates who cannot control body temperature. Frog belongs to chordates but, class amphibians who also have cold blood
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