Both amphibians and mammals rely on a double circulatory system. However, one large difference is ________.a. Amphibians do not have lungs b. Amphibians mix deoxygenated and oxygenated blood in their heart c. Amphibians have 2 atria d. Amphibians rely on Brownian motion e. None of the above

Question

20-04-2020
Biology

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Both amphibians and mammals rely on a double circulatory system. However, one large difference is ________.a. Amphibians do not have lungs b. Amphibians mix deoxygenated and oxygenated blood in their heart c. Amphibians have 2 atria d. Amphibians rely on Brownian motion e. None of the above

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ranichoubey506 ranichoubey506 · Answer 1 · 2020-04-22T10:55:33+02:00

Answer:

B

Explanation:

1. Amphibian's heart is three-chambered from which two are atria and only one is ventricle.

2. And there is two circulatory pathways having different routes.

3.There is mixing of oxygenated and deoxygenated blood in case of amphibians.

4. And in case of mammals there is no mixing of blood,, both the oxygenated and deoxygenated blood is completely separate.

5. Mammal's heart contain four chambers from which two are atria and two are ventricle, and they completely separate both the oxygenated and deoxygenated blood.