What is the ability of an organism to change internally or externally to changes in the environment is called

Homeostasis

Explanation:

This is the ability of an organism to maintain constant conditions in  the internal to the external environments. The most important conditions of the internal environment that must be kept constant include: osmotic pressure of blood, blood sugar, temperature and metabolic wastes.

Homeostasis can be maintained in the body through sweating to regulate temperature, lowering of hair, vasodilation of superficial blood vessel and animals living in very cold habitats have a particularly thick layer of subcutaneous fat which prevents heat loss

the answer would be 3

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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explanation: