ANIMAL BEHAVIOR
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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its body slows down throughout the winter
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its body stays at or near a constant temperature
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its body is not affected by changes is temperature
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its body temperature changes with the outside temperature
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Detailed explanation-1: -Endotherms maintain constant body temperature by physiological means i.e by heat generated inside the body. Bird and mammals are endotherms. Thus, the correct answer is D.
Detailed explanation-2: -Endotherms generate most of the heat they need internally. When it’s cold out, they increase metabolic heat production to keep their body temperature constant. Because of this, the internal body temperature of an endotherm is more or less independent of the temperature of the environment.
Detailed explanation-3: -endotherm, so-called warm-blooded animals; that is, those that maintain a constant body temperature independent of the environment. The endotherms primarily include the birds and mammals; however, some fish are also endothermic.
Detailed explanation-4: -To be endothermic, an organism must produce its own body heat through metabolism. This means that the endothermic organism can maintain internal homeostasis regardless of the external environmental temperature.
Detailed explanation-5: -Temperature has a direct relationship with metabolic rate in animals. Endotherms and ectotherms are both affected by cold temperatures, while endotherms increase their metabolic rate because of increased activity to stay warm; ectotherms decrease their metabolic rate because of low environmental temperatures.