Question

Which of the following is primarily an ectotherm?
A) Pigeons
B) Camel
C) Lizard
D) Rabbit

Answer 1

Hint: Ectotherms rely chiefly on external heat sources and their vital sign changes with the temperature of the atmosphere. Ectotherms are that animals in which regulation of temperature depends on external sources, like daylight or a heated rock surface.

Complete step by step answer: For ectotherms, vital sign principally depends on external heat sources. That is, for animals being vital, signs rise and fall alongside the temperature of the encircling setting. Most ectotherms do regulate their vital sign to a point, though. They solely do not mate by manufacturing heat. Instead, they use alternative methods, like behavior - seeking sun, shade, etc., to notice environments whose temperature meets their wants.
Whereas Endotherms are those animals that are able or capable of the interior generation of warmth or generate heat to be more precise.
Since now we know what ectotherms and endotherms are let us looking at each option in detail so that we can get the correct answer for this question,
-Camels and rabbits (mammals) and pigeons (birds) are endotherms that maintain their temperature inside over a range of structural options, a physiological and activity mechanism.
-Lizards (reptiles) are ectotherms and maintain their virtually constant vital sign victimization activity thermoregulatory mechanisms like alternate shuttling between sunny and shady regions, staying within the burrow throughout hottest summer days, and adjusting their angle of posture with relevancy sun rays.
Thus, the right answer is C which is Lizard.

Note: One different necessary point: as a general rule, endotherms have significantly higher metabolic rates than ectotherms. As a result, they need to burn massive quantities of fuel—food—to maintain their internal blood heat.