Question

On reaching an organ or a tissue, _______________ divide into smaller and smaller
vessels to bring the blood in contact with all the individual cells.
(A) Artery and vein (B) Artery, vein and capillary
(C) Vein and capillary (D) Artery​

Answer 1

Answer:

Blood Vessels. Arteries (in red) carry oxygen rich blood from the left side of the heart to the tissues and organs. After oxygen leaves the blood and moves into the tissues, the level of oxygen in the blood becomes low. The veins (in blue) carry blood that has a low level of oxygen back to the right side of the heart. Blood from the veins is pumped from the right side of the heart through the blood vessels of the lungs, where new oxygen is picked up. This oxygen rich blood flows from the lungs to the left side of the heart.