Question 1:
What are the components of the transport system in human beings? What are the
functions of these components?
Answer
The main components of the transport system in human beings are the heart, blood,
and blood vessels·
• Heart pumps oxygenated blood throughout the body. It receives deoxygenated
blood from the various body parts and sends this impure blood to the lungs for
oxygenation.
• Being a fluid connective tissue, blood helps in the transport of oxygen, nutrients,
CO2, and nitrogenous wastes.
• The blood vessels (arteries, veins,and capillaries) carry blood either away from the
heart to various organs or from various organs back to the heart.
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