The process by which organisms obtain their food and convert them into simpler components to gain energy is known as nutrition.
Nutrition can be classified into two types:
Autotrophic nutrition.
Heterotrophic nutrition.
The type of nutrition in which organisms can make their own food is known as autotrophic nutrition. For example-green plants.
The type of nutrition in which organisms cannot make their own and depends on the plants for nourishment is known as heterotrophic nutrition. For example- Man, goat etc.