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Multicellular organisms are able to achieve homeostasis because they cells are specialized in function and work cooperatively with one another.
Letter d)
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Answer:
Pulmonary circulation only occurs between the heart and the lungs. Systemic circulation refers to the circulation of blood in which oxygenated blood is pumped from the heart to the body and deoxygenated blood is returned back to the heart. Systemic circulation occurs between the heart and the entire body.
Pulmonary circulation moves blood between the heart and the lungs. It transports deoxygenated blood to the lungs to absorb oxygen and release carbon dioxide. The oxygenated blood then flows back to the heart. Systemic circulation moves blood between the heart and the rest of the body.
Explanation:
Systemic circulation carries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body. From the tissue capillaries, the deoxygenated blood returns through a system of veins to the right atrium of the heart.
B. An isotonic solution has an equal concentration of solute as is inside the cell, so water won't rush in by diffusion.
The ring of the muscle in the digestive tract, which can open and close, or regulate the movement of food into or out of parts of digestive system, is the pyloric sphincter.
The pyloric sphincter is present at the bottom of the stomach, and it is a muscular valve that opens to allow the food materials to pass from the stomach to the top of the small intestine of our digestive system.
Hence, The pyloric sphincter serves as a type of gateway between stomach and small intestine, and It allows the contents of the stomach like foot materials to pass into the small intestine. Also, It prevents digestive juices or partially digested food from re-entering into the stomach.
Learn more about pyloric sphincter here
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Enzymes cut out the erroneous nucleotides and then attach the correct nucleotides with the complementary strand.
