Four-chambered hearts, two atria and two ventricles, are found in all of these animals exceptMultiple choice question.crocodiles.mammals.amphibians.birds.
Question
Four-chambered hearts, two atria and two ventricles, are found in all of these animals except
- Multiple choice question.
- crocodiles.
- mammals.
- amphibians.
- birds.
Solution
The correct answer is "amphibians".
Here's why:
-
Crocodiles: They are reptiles and have a four-chambered heart, with two atria and two ventricles.
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Mammals: All mammals, including humans, have a four-chambered heart, with two atria and two ventricles.
-
Amphibians: Most amphibians have a three-chambered heart, with two atria and one ventricle. This is the exception in the list.
-
Birds: Birds, like mammals and crocodiles, have a four-chambered heart, with two atria and two ventricles.
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