Question

5. Give reasons for the following statements.
(a) Ventricles have thicker walls than auricles. because
(b) Valves are present at the opening of auricles into ventricles.
(c) The walls of arteries are thick.​

Answer 1

Explanation: 1 ventricle are thick because it has to pump blood from heart to various distant organs hence requires a get muscle contraction. ... Hence the valves open and blood goes to lungs and other body organs. 3 Arteries have thick walls to help maintain the pressure of blood flow through out the body.

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Answer 2

Answer:

a, because ventricles have to obtain the blood by relaxation nd then push the blood in to the artey