EVERYDAY SCIENCE

SCIENCE

ZOOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the difference between an endotherm and an ectotherm?
A
Endotherm’s body temperature changes with the environment and ecotoaherm’s remain constant
B
Ectotherm’s body temperature changes with the environment and endotherm’s stay constant
C
Both ectotherm’s and endotherm’s have fluctuating body temperatures.
D
Both endotherms and ectotherms have constant body temperatures.
Explanation: 

Detailed explanation-1: -Endotherms use internally generated heat to maintain body temperature. Their body temperature tends to stay steady regardless of environment. Ectotherms depend mainly on external heat sources, and their body temperature changes with the temperature of the environment.

Detailed explanation-2: -An ectotherm (reptile/amphibian) relies primarily on its external environment to regulate the temperature of its body. Endotherms (birds) are able to regulate their body temperatures by producing heat within the body.

Detailed explanation-3: -In contrast to ectotherms, endotherms maintain a high and constant body temperature, which is thus decoupled to a large degree from the direct influence of ambient climatic conditions [14]. The breadth of the thermal tolerance of a given endotherm can be estimated empirically via its energetic requirements [12].

Detailed explanation-4: -Endotherms regulate their own internal body temperature, regardless of fluctuating external temperatures, while ectotherms rely on the external environment to regulate their internal body temperature.

Detailed explanation-5: -Mechanisms of thermoregulation Endotherms, such as birds and mammals, use metabolic heat to maintain a stable internal temperature, often one different from the environment. Ectotherms, like lizards and snakes, do not use metabolic heat to maintain their body temperature but take on the temperature of the environment.

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