Answer:
Physiological definitions of life are popular. Life is defined as any system capable of performing functions such as eating, metabolizing, excreting, breathing, moving, growing, reproducing, and responding to external stimuli.
Most children understand by the ages of 5 to 7 that death is the irreversible ending of all life functions, and that it happens to all living beings. ... As people continue aging, they gradually learn to accept the eventual deaths of loved ones, as well as their own deaths.
