Birds are and have a heart.
a. endothermic; three
b. endothermic; four
c...
Biology, 20.11.2019 01:31 uh8hardiek
Birds are and have a heart.
a. endothermic; three
b. endothermic; four
c. ectothermic; three
d. ectothermic; four
Answers: 1
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