Question

which of the following has valves in them ?

A) Heart. B) Arteries C) veins
D) Lymph vessels E) capillaries

A) 1,2,3. B) 1,3,5 C) 1,3,4 D) all

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please answer it correctly....

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Answer 1

Answer:

C) Heart , viens, lymphatic vessels

Heart has valves.

Unlike arteries, veins contain valves that ensure blood flows in only one direction. (Arteries don't require valves because pressure from the heart is so strong that blood is only able to flow in one direction.)

It is clear that the blood travels because of pressure of blood so there is no requirement of valves in the capillaries.

Like veins, the lymphatic tributaries have thin walls and have valves to prevent backflow of blood. There is no pump in the lymphatic system like the heart in the cardiovascular system

Answer 2

Explanation:

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