Closed circulatory system occurs in
(a) cockroach (b) tadpole/fish
(c) mosquito (d) housefly
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Answer:
B. Tadpole/fish
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A closed circulatory system occurs in tadpole/fish.
Option (b).
Explanation:
- A tadpole always lives in water most of the time.
- It has a two-chambered heart in which the blood flows in a atrium and heart relax and the blood moves to the ventricles.
- If the ventricles contract the blood is forced to capillaries.
- Then, the blood travels along the capillaries to supply the blood.
- Closed circulatory system indicates that the flow of blood in a vessels in a particular direction in an ordered manner than in an open system.
- It is a high-pressure system in which the blood flows in a closed path called blood vessels.
- It is efficient as blood circulation in a short-term period.
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