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Give scientific reason. Closed circulation is more efficient than open circulation. - Biology

Short Note

Give scientific reason.

Closed circulation is more efficient than open circulation.

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Solution

1. In open circulation, blood is not enclosed in blood vessels but pumped directly into the cavity called haemocoel whereas, in the closed type of circulation, blood flows within the blood vessels and does not come in direct contact with cells and body tissues.

2. Therefore, in closed blood circulation blood flows under high pressure and allows the blood to pass faster and achieve a high level of distribution within the body.

Thus, closed circulation is more efficient than open circulation.

Concept: Circulation in Animals
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APPEARS IN

Balbharati Biology 12th Standard HSC for Maharashtra State Board
Chapter 8 Respiration and Circulation
Exercise | Q 5.1 | Page 181
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