Answer:
an individual animal, plant, or single-celled life form
Step-by-step explanation:
In biology, an organism is any individual contiguous system that embodies the properties of life. It is a synonym for "life form". Organisms are classified by taxonomy into groups such as multicellular animals, plants, and fungi; or unicellular microorganisms such as protists, bacteria, and archaea.
in short: the material structure of an individual life form. a whole with interdependent parts, likened to a living being.