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Explanation:

The broadest ways organisms can be categorized as either prokaryotic or eukaryotic.

Prokaryotic organisms are always unicellular. They lack a nucleus, and lack membrane bound organelles. Bacteria are an example.

Eukaryotic organisms can be unicellular or multicellular. They have a nucleus and membrane-bound organelles. Examples include protists, animals, plants, and fungi.

Viruses are the only type of 'living' thing that doesn't fit in these categories. This is because they lack some of the 9 characteristics of life - they are not cellular and cannot reproduce independently. Therefore they are often considered non-living.

homeostasis is the tendency towards a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes. and this is how it applies to the integumentary system. back to top. skin functions in homeostasis include protection, regulation of body temperature, sensory reception, water balance, synthesis of vitamins and hormones, and absorption of materials. when body temperature falls, the sweat glands constrict and sweat production decreases.

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