Biology, asked by vashusingh657, 5 months ago

Q.1:- Veins are thin walled and have valves. Justify(1​

Answers

Answered by seyjafernando
0

Answer:

yeah but I think you should give a longer question to answer I don't understand it sorry

Answered by eejas847
1

Answer:

veins are thin walled andd half valves that prevent the blood from flowing back in the wrong direction.

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