Is 'nutrition' a necessity for an organism? Discuss.

(N/A) Yes,nutrition is a fundamental necessity for all living organisms for the following reasons:
$(a)$ Energy Provision: Food provides the energy required for various metabolic processes,such as respiration,circulation,and excretion,which are essential for maintaining life.
$(b)$ Growth and Repair: Nutrients are essential for the synthesis of new cellular components,facilitating the growth of the organism and the repair or replacement of damaged or worn-out cells and tissues.
$(c)$ Disease Resistance: Proper nutrition helps in strengthening the immune system,which is necessary to develop resistance against various diseases and infections.