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maksim [4K]
3 years ago
7

How are fish hearts and mammal hearts different?

Biology
2 answers:
Nonamiya [84]3 years ago
5 0
They each have different amounts of chambers. Fish have 2 chambers, and mammals have 4 chambers! Hope that helps!
tamaranim1 [39]3 years ago
3 0
One can breathe under water and the other can’t
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