What is meant by a living organism? How is it different from non-living objects?

(N/A) $\Rightarrow$ The world is composed of both living and non-living entities.
$\Rightarrow$ The fundamental difference between living and non-living objects is that all living organisms possess cells,which are the basic unit of life.
$\Rightarrow$ $A$ cell is the structural and functional unit of all living organisms.
$\Rightarrow$ Organisms composed of a single cell are termed as unicellular organisms,whereas those composed of many cells are known as multicellular organisms.
$\Rightarrow$ Living organisms exhibit characteristics such as metabolism,growth,reproduction,response to stimuli,and homeostasis,which are absent in non-living objects.