Question

Identify the set of homeothermic animals.
(a) Frog, Lion and Fish
(b) Bat, Pigeon and Rabbit
(c) Pigeon, Lizard and Tortoise
(d) Rat, Snake and Crocodile

Answer 1

Hint: Homeothermic species are the warm-blooded creatures that hold the body temperature stable. Especially by regulating metabolic processes they maintain a stable body temperature. Examples include mammals and insects, as well as amphibians.

Complete answer:
Homeotherms are the one that can only survive when the temperature of the internal body is within a small range. These animals have a steady, continuous body temperature that is completely independent of the ambient temperature.
Cold-blooded animals are the species which can not control the temperature of their body according to the ambient environment. These animals' body temperature fluctuates as they pass through varying temperatures in different environments. Therefore they have no stable body temperature. For this cause these species are unable to live in high temperatures.
Cold-blooded animals include invertebrates, reptiles , birds, amphibians, insects and others. These species are classified as poikilothermic species too. Cold-blooded animals typically exhibit all three of the mechanisms for thermoregulation; poikilothermy, ectothermy, or heterothermy.
Poikilothermy is the condition where the animals' internal temperature may differ, but the core temperature is always the same as the immediate surrounding ambient temperature. Fish and reptilia for example. The naked mole-rat and sloth are few of the poikilothermic rare mammals.
Ectothermic refers to the process where animals use external means, such as the sun, to regulate the temperature of their body. For example,  Pseudemys turtles are ectothermic.
Heterothermy refers to the process where body temperature will dramatically shift as the animal moves from one place to the next. Heterothermy is a term used for animals with both ectothermic and endothermic characteristics. They can switch from one approach to another.
So, the correct answer is, 'Bat, pigeon, and rabbit'.

Note: Thermoregulation is an organism's ability to regulate its body temperature within defined limits, even though it has different ambient temperatures. This is an aspect of homeostasis which keeps an internal environment constant.