Question

Which one is a group of warm-blooded animals?
a. Fishes
b. Amphibians
c. Reptiles
d. Birds

Answer 1

Hint: Warm-blooded animals are those who can maintain their body temperature, higher than the external environment. And those are also called homeotherms because they maintain stable temperature by the metabolic process in the body.

Complete answer:
The body temperature of animals varies from species to species so scientifically it is not correct to use the terminology cold-blooded and warm-blooded, but it is still used everywhere.

Generally warm-blooded have come under 3 categories of thermoregulators which includes,
> Endothermy: These are the creatures where they produce heat in the body my internal means such as shivering through muscle contraction, or by increasing metabolism whenever it is needed, and the thermoregulation that is opposite to endothermy is exothermic.

> Homeothermy: In this type of animal, they maintain their body temperature as stable, to the external environment, and this stable temperature is also higher than the environment, and the opposite to homeothermy is Poikilothermy.

> Another type of thermoregulation is Tachymetabolism, where the metabolism is very slow in the rest when compared to active.

So a large number of animals have come under warm blood, common examples are birds and mammals, so all these thermal regulations, which means endothermy, homeothermy, and tachymetabolism are seen in these warm blooded animals.

Hence, the correct answer is option (D).

Note: As mammals and birds are warm-blooded animals, they have a very high defense against fungi, this is because most fungal species cannot survive the temperature of the warm-blooded animals, but others like reptiles, amphibians are easily plagued by the fungi because of cold-bloodedness.