With animals it can help them camoflauge and blend into their backdrop. It can also provide warmth or protection with thick hides.
two for flying, two for covering their eyes now one can see GOD THE FATHER, and two for covering their body
Well just to name two: your nose hairs your saliva
The platypus has a body covering of thick, velvety fur. the fur has two layers, with the underlying layer being for insulation.
The kudus are two species of African antelopes, and both species have a coat of short hairs.
the two uses of sunflower
Seals are mammals, and all mammals have a body covering of skin, hair or fur. Although the seal's hair may not be visible, it is still present.
how many ribs that covering the heart
Ears have two uses. First, mainly for hearing and receiving sound waves and the second one is for the body balance and equilibrium
glucose and oxygen
For example heating by combustion of fuels.
Protein provide structure, and release hormones and enzymes.
The Stylonychia has short tufts of cilia covering its body. These along with two longer more permanent appendages at each help it move.