- Scoliodon (fish) has a two-chambered heart. - Salamander (amphibian) has a three-chambered heart. - Pigeon (bird) has a four-chambered heart. - Human being (mammal) has a four-chambered heart.
Which one of the following animals has a three-chambered heart?
Asked in UPSC CDS 1 2020 · Topic: Circulatory System (Comparative Circulatory Systems in Animals (e.g., Fish, Amphibians, Reptiles, Birds, Mammals))
More Biology questions
- Which of the following statements are correct? (a) So as to prevent oxygenated blood from mixing with deoxygenated blood birds and mammals have four chambered hearts. (b) Amphibians and some reptiles tolerate some mixing of oxygenated and deoxygenated blood and therefore have three chambered hearts. (c) Fishes have only two chambered hearts as here blood is pumped to gills to get oxygenated which then passes to the rest of the body.
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- Given below are two Statements, one is labelled as Assertion (A) and other is labelled as Reason (R). Assertion (A): Amphibians can tolerate mixing of oxygenated and deoxygenated blood. Reason (R): Amphibians are animals with two chambered heart. Select the correct answer using the codes given below :
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