Biology, 13.12.2019 07:31 janahiac09
2. an adaptive advantage of having a three-chambered heart, as found in amphibians, over the two-chambered heart of fish is thata. there are capillary beds in both the respiratory organ and body systems of amphibians but not fish. b.the additional chamber in the amphibian heart reduces blood flow to the respiratory organ. c.fully oxygenated blood returning to the amphibian heart can undergo additional pumping to reach higher pressures. d.fully oxygenated blood is kept completely separate from relatively deoxygenated blood in the heart. e.amphibians can tolerate higher environmental pressures.
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2. an adaptive advantage of having a three-chambered heart, as found in amphibians, over the two-cha...
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