Poll Results
0%(A) They have thick elastic walls, blood flows under high pressure; collect blood from different organs and bring it back to the heart.
0%(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.
0%(C) They have thick elastic walls, blood flows under low pressure; carry blood from the heart to various organs of the body.
100%(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. ( 2 voters )
Based On 2 Votes
(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.