Question

What is the factor that decides whether the animal is warm blooded or cold blooded?

Answer 1

The notation of cold blooded and warm blooded means that those animals rather organisms which can regulate their body temperature are called warm blooded animals like that of a reptile and which cannot regulate the blood temperature are cold blooded.

Answer 2

$\bold{Warm\:blooded\:animals}$ can control their internal body temperature.

$\bold{This\:includes:}$

=> Mammals
=> Birds.

Whereas,

$\bold{Cold\:blooded\:animals}$ can't control their internal temperature and they require some source of heat to survive.

$\bold{This\:includes:}$

=> Reptiles
=> Fishes
=> Amphibians.