Biology, asked by hello7777, 1 year ago

please solve this..........

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Answered by birjebhagyashree
0

Answer:the kind of blood vessels is veins

Structure shown is pocket valves

Role is preventing back flow of blood

Explanation:

Answered by samirsingh070329
0

Answer:

1. vein

2. Valve 3. It stops the back flow of blood

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