NEET Exam > NEET Videos > Biology Class 11 > Circulatory System: Fishes & Amphibians
Circulatory System: Fishes & Amphibians Video Lecture | Biology Class 11 - NEET
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FAQs on Circulatory System: Fishes & Amphibians Video Lecture - Biology Class 11 - NEET
| 1. What is the circulatory system in fishes and amphibians? |  |
Ans. The circulatory system in fishes and amphibians is a network of blood vessels and organs that transports oxygen, nutrients, hormones, and waste products throughout the body. It consists of a two-chambered heart, gills or lungs, and a closed circulatory system.
| 2. How does the circulatory system of fishes differ from that of amphibians? | |
Ans. The circulatory system of fishes and amphibians differ in terms of their heart structure. Fishes have a two-chambered heart with one atrium and one ventricle, while amphibians have a three-chambered heart with two atria and one ventricle.
| 3. What is the role of gills in the circulatory system of fishes? | |
Ans. Gills in fishes serve as respiratory organs and play a crucial role in the circulatory system. They extract oxygen from water and release carbon dioxide. The deoxygenated blood from the body is pumped to the gills, where it picks up oxygen and gets rid of carbon dioxide before being distributed to the rest of the body.
| 4. How do amphibians breathe and circulate oxygen in their bodies? | |
Ans. Amphibians have the ability to respire through their gills, lungs, and even their skin. They possess lungs for breathing on land and gills for breathing underwater. Oxygen enters the body through the lungs or skin, and the circulatory system transports it to the various tissues and organs.
| 5. Can amphibians live solely on land due to their circulatory system? | |
Ans. While amphibians can respire on land, their circulatory system is not designed for efficient oxygen transport. The three-chambered heart and the less effective circulation system limit their ability to sustain prolonged activity on land. Therefore, most amphibians still rely on water bodies for reproduction and survival.
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Dec 22, 2024 Last updated |
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