Question

Why do organisms need to take food?

Answer 1

Hint: To perform all basic metabolic processes like respiration, digestion, transportation, excretion, blood circulation and others. In basic language we can say to obtain energy to perform all tasks required for survival of that particular organism.

Complete answer:
Every individual present on this earth survives due to its energy source that is food. All organisms find their food and sometimes fight for food and even some pay their life for this food.
Every one present on this earth needs food to perform all basic and daily need tasks required for the survival of that organism. Food provides energy to do work and to perform different metabolic processes inside the body.
Organisms need to perform biological processes like respiration, nutrition, digestion of food, transportation of different materials from one site to another, excretion of waste materials, blood circulation, reproduction, healing, fighting with germs, signalling, growth and many other complex and wide range of processes. So, these all need energy to get performed. This energy we get from food.
Intake of food helps in completing all these activities and also helps in development of immunity against infectious germs or pathogens like viruses and bacteria. Food is a necessary element which helps in maintaining proper functioning of organism, structure of organism and its development.
Thus, we can conclude that having food is very important for healthy survival of organisms.

Note: Different species of organisms depend on different sources of food maintaining ecological balance in-between that is food chains. Ultimate source of food or energy is the sun. From which plants help in converting to other forms and then every creature on this earth gets nutrition.