Question

Choose the correct statement that describes arteries.
(a) They have thick elastic walls, blood flows under high pressure; collect blood from different organs and bring it back to the heart
(b) They have thin walls with valves inside, blood flows under low pressure and carry blood away from the heart to various organs of the body
(c) They have thick elastic walls, blood flows under low pressure; carry blood from the heart to various organs of the body
(d) They have thick elastic walls without valves inside, blood flows under high pressure and carry blood away from the heart to different parts of the body.

NCERT Class X
Science - Exemplar Problems

Chapter_Life Processes

Answer 1

d)  Arteries have thick elastic walls, with blood flowing in them from the heart to the parts of the body...  The blood pressure in them is high.. So they have thick elastic walls...  The arteries also carry blood to the lungs -- called  pulmonary arteries.

It is the veins which collect blood from different parts of the body and return them to the heart..

Answer 2

Answer:

Answer :- ( D )

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