UPSC Exam > UPSC Videos > Zoology Optional Notes for UPSC > Three Chambered Heart in Dipnoi Fishes,Amphibians & Reptiles
Three Chambered Heart in Dipnoi Fishes,Amphibians & Reptiles Video Lecture | Zoology Optional Notes for UPSC
FAQs on Three Chambered Heart in Dipnoi Fishes,Amphibians & Reptiles Video Lecture - Zoology Optional Notes for UPSC
| 1. What is a three-chambered heart in Dipnoi fishes, amphibians, and reptiles? |  |
Ans. A three-chambered heart is a type of circulatory system found in Dipnoi fishes, amphibians, and reptiles, where there are two atria and one ventricle that pumps blood to both the lungs and the body.
| 2. How does a three-chambered heart differ from a four-chambered heart? | |
Ans. A three-chambered heart differs from a four-chambered heart in that it has one less chamber, with the ventricle pumping blood to both the lungs and the body in a three-chambered heart, whereas a four-chambered heart has separate ventricles for each.
| 3. What are some advantages of having a three-chambered heart in these animals? | |
Ans. Having a three-chambered heart allows for a more efficient circulation of oxygenated and deoxygenated blood, as well as a lower metabolic rate due to the mixing of oxygenated and deoxygenated blood in the single ventricle.
| 4. How does the three-chambered heart in Dipnoi fishes, amphibians, and reptiles affect their overall physiology? | |
Ans. The three-chambered heart in these animals affects their overall physiology by influencing their oxygen uptake, metabolism, and energy efficiency, as well as their ability to survive in low oxygen environments.
| 5. Are there any disadvantages to having a three-chambered heart in these animals? | |
Ans. Some disadvantages of having a three-chambered heart include reduced efficiency in oxygenation, limited ability for high-energy activities, and potential limitations in adapting to extreme environmental conditions.
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