Biology, asked by AGRAWALGRACY77, 1 year ago

why are valves pre
sent in heart and veins?

Answers

Answered by kikibuji
2

Answer:

valves are present to prevent backward flow of blood..

Answered by Anonymous
0

Answer:-

Veins carry blood at low pressure as compared to blood carried by arteries. ... Veins carry blood from tissues to the heart, so they carry blood at low pressure. Valves are present in the veins to prevent backflow of flood due to force of gravity.

Hope My Answer Helps You ☺️

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