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NO they do not. They have four chambered hearts.

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10y ago
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10y ago

There are four chambers in a mammal's heart: the left atria, left ventricle, right atria and the right ventricle.

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15y ago

Amphibians (frogs, salamanders, etc.)

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12y ago

Mammalian hearts have four chambers.

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8y ago

four

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12y ago

4 chambers

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Q: How many chambers are there in a mammal's heart what are they?
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