Question

what is homeostasis.

Answer 1

Homeostasis is the maintenance of a constant internal environment (the immediate surroundings of cells) in response to changes in: 
i) the changing conditions of the external environment. 
ii) the changing conditions of the internal environment.

Homeostasis works to maintain the organism's internal environment within tolerance limits - the narrow range of conditions where cellular processes are able to function at a level consistent with the continuation of life.
 

Answer 2

Explanation:

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$\huge \underline \blue{Homeostasis}$

Excretory organ maintain internal environment of the body.

it require osmoregulation.

Control solute concentration and water balance.

Composition of blood is depend upon what excretory organ retained.

Albatross is an marine bird. They have salt gland near nostril. This glands secrets salt and maintain osmotic balance.

Salt gland are also present in Sea turtle and marine iguanas.