The animals that control it internal body is called indpendent animal
It is called homeostasis (internal environment maintained at a constant level) or thermostasis (internal heat maintained at a constant temperature). The overall name for the processes by which temperature is controlled is thermoregulation.
A cold blooded animal (also called an ectotherm)
An animals internal control of natural cycles is called instinct. An animal will migrate towards water and food sources, as well as move away from any other creature that it considers a threat.
The maintenance of a stable internal environment is called homeostasis.
The internal bony structure is called an "endoskeleton", in contrast to a rigid shell on the outside of the animal, normally made of chitin.Animals that possess these structures are known as vertebrate animals.
ANATOMY
Motivation
As an analogue to a skeleton in an animal this structure is called the cytoskeleton.
thermostat
any plant or animal fat that is liquid at room temperature is called unsaturated fat
any plant or animal fat that is liquid at room temperature is called unsaturated fat
Animals that do not control their body temperature but rather let the environmental temperature control it are called cold-blooded or the technical term is ectotherm.