Question : _______ are the vessels which carry carbon dioxide-rich blood back to the heart.
Option 1: Veins
Option 2: Neurons
Option 3: Capillaries
Option 4: Arteries
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Correct Answer: Veins
Solution : The correct option is Veins.
Veins are the vessels that carry carbon dioxide-rich blood back to the heart. In the circulatory system, arteries carry oxygenated blood away from the heart to the body's tissues, while veins return deoxygenated blood, which is rich in carbon dioxide, from the body's tissues back to the heart. This deoxygenated blood is then pumped to the lungs for oxygenation, and the cycle continues as part of the circulatory process.
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Question : ______ are the vessels which carry blood away from the heart to various organs of the body.
Option 2: Tracheas
Option 3: Arteries
Option 4: Plasma
Question : The main function of the heart is to:
Option 1: supply oxygen to the tissues
Option 2: carry carbon dioxide from the tissues
Option 3: throw away waste materials
Option 4: pump blood to different parts of the body
Question : Dry ice is
Option 1: Solid ammonia
Option 2: Solid sulphur dioxide
Option 3: Dry carbon dioxide
Option 4: Solid carbon dioxide
Question : The blood vessels carrying blood from the lungs to the heart is
Option 1: Hepatic artery
Option 2: Pulmonary artery
Option 3: Pulmonary vein
Option 4: Renal artery
Question : which of the following is correct about Insulin?
Option 1: increases blood sugar
Option 2: decreases blood sugar
Option 3: constricts blood vessels
Option 4: stimulates lactation
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