What is the difference between single circulation and double circulation
Asked by jaiswalsindhuli717 | 5th Sep, 2018, 07:51: PM
Differences between single and double circulation:
- Blood flows only once through the heart during one cycle of passage through the body.
- Blood flows twice through the heart during one cycle of passage through the body.
- Occurs only in fishes.
- Occurs in all other vertebrates other than fishes.
- Only venous blood passes through the heart
- Mixed or oxygenated or venous blood passes through the heart.
- Less efficient as gill capillaries slow down the blood flow, hence the body receives blood at a low pressure which decreases the rate of oxygen supply to the cells.
- More efficient as blood flows at higher pressure especially in birds and mammals. This increases the rate of supply of food and oxygen to the cell and also rapid removal of wastes from them.
Answered by Sheetal Kolte | 6th Sep, 2018, 11:11: AM
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