SCIENCE
CIRCULATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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False
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True
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Either A or B
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None of the above
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Detailed explanation-1: -Blood carries carbon dioxide and other waste materials to the lungs, kidneys, and digestive system to be removed from the body. Blood also fights infections, and carries hormones around the body. Blood is made up of blood cells and plasma.
Detailed explanation-2: -Capillaries: These tiny blood vessels have thin walls. Oxygen and nutrients from the blood can move through the walls and get into organs and tissues. The capillaries also take waste products away from your tissues. Capillaries are where oxygen and nutrients are exchanged for carbon dioxide and waste.
Detailed explanation-3: -When carbon dioxide binds to hemoglobin, the color changes from bright red to dark red with a hint of purple .
Detailed explanation-4: -It turns out that blood is never blue. Its color-either red or darker red-is determined by the amount of oxygen and carbon dioxide in the blood.