SCIENCE
ZOOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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2
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2 or 3
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3 or 4
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4
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Detailed explanation-1: -Most amphibians, including frogs and toads, have three-chambered hearts, with two atria and one ventricle (Figure 1).
Detailed explanation-2: -Amphibians have 3 heart chambers: 2 atria and 1 ventricle.
Detailed explanation-3: -Frogs have a three-chambered heart. It consists of two atria and one ventricle.
Detailed explanation-4: -amphibians and most reptiles have a heart with three chambers-two atria and a single ventricle. These animals also have separate circuits of blood vessels for oxygenating blood and delivering it to the body.
Detailed explanation-5: -Amphibians and reptiles (except for crocodiles) contain a three-chambered heart with only one ventricle. This is because these animals have a slower metabolism rate and hence, they require a lower amount of oxygen per liter of blood to be delivered to the body.