Question

What is living organism? Explain its main characters.

Answer 1

living organisms are those which perform every activity like reproduction.. respiration

Answer 2

An individual form of life, such as abacterium, protist, fungus, plant, or animal, composed of a single cell or a complex of cells in which organelles or organs work together to carry out the various processes of life. 
And their characteristics are: Nutrition,growth, reproduction, excretion, respiration and sensitivity.