In the evolution of circulatory systems, how is a 4-chambered heart advantageous compared to a 3-chambered heart?
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A 3-chambered heart is a heart that has three chambers: two atria and one ventricle. A 4-chambered heart is a heart that has four chambers: two atria and two ventricles. Now, let's look at the advantages of a 4-chambered heart compared to a 3-chambered heart: Show more…
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What is one advantage of a four chambered heart over a three chambered heart? a. Oxygenated blood carried by the right side of the heart is completely separated from the left side carrying deoxygenated blood, which assists in more efficient movement of oxygen around the body and aids in allowing the body to quickly move when needed. b. A four-chambered heart keeps oxygenated and deoxygenated blood separated and has double circulation whereas a three-chambered heart has a single circulation. This assists in more efficient movement of oxygen around the body. c. Oxygenated and deoxygenated blood are kept separate in a four-chambered heart, which assists in more efficient movement of carbon dioxide around the body. d. Oxygenated and deoxygenated blood are kept separate in a four-chambered heart, which assists in more efficient movement of oxygen around the body and aids in allowing the body to move quickly when needed.
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Three-chambered hearts with incomplete septa were once viewed as being less adapted to circulatory function than mammalian hearts. What advantage of such hearts did this viewpoint overlook?
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Describe the evolution of the heart including open and close circulatory systems from annelids to humans.
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