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Reptiles and amphibians ;3

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Q: Class with 3-chambered heart
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Why does a mammal need more oxygen than a reptile of the same size?

Yes, mammals have a 4chambered heart, while reptiles only have a 3chambered heart.


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A general First Aid class from the American Heart Association is about 3 - 4 hours.


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The only Echinoderms that have a hearts are a few species of the class Holothuroidea, which are the sea cucumbers (most do not). The other classes of Echinoderms do not possess a heart ever (Class Asteroidea, Class Ophiuroidea, Class Echinoidea)


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What class of vertebrates has a heart with two atria and one ventricle?

Any class of vertebrate with a three-chambered heart has two atria and one ventricle. An example would be amphibians such as frogs.


How many chambers are in the heart of the Class Amphibia?

Amphibians have three chambers in the heart: Two atria and one ventricle


Who sings your heart beats like a drum?

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Is Mitral Valve Prolapse a class III heart condition?

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Does a pacemaker classify as a class 3 or 4 cardiac condition?

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