OBJECTIVE LIFE SCIENCE
ANIMAL PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When the lower critical temperature (LCT) is reached ____
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the metabolic rate rises to increase heat production
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the metabolic rate rises to decrease heat production
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the metabolic rate decreases to increase heat production
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the metabolic rate decreases to decrease heat production
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Explanation:
Detailed explanation-1: -Environmental temperatures below the TNZ, the lower critical temperature (LCT), require an organism to increase its metabolic rate to meet the environmental demands for heat. The Regulation about the TNZ requires metabolic heat production when the LCT is reached, as heat is lost to the environment.
Detailed explanation-2: -Lower Critical Temperature (LCT) = temperature below which an endotherm must increase metabolic HP to maintain constant Tb.
Detailed explanation-3: -As temperature increases, the rate of metabolism increases and then rapidly declines at higher temperatures-a response that can be described using a thermal performance curve (TPC).
There is 1 question to complete.