what is nutrition short answer

Nutrition is the process by which living organisms obtain food and use it for energy, growth, repair, and maintenance of the body.

It is an essential life process because all organisms need nutrients to survive and perform daily activities.

Main functions of nutrition

• Provides energy for body activities

• Helps in growth and development

• Repairs damaged tissues

• Maintains overall health

Types of nutrition

• Autotrophic nutrition → Organisms make their own food
  Example: Green plants

• Heterotrophic nutrition → Organisms depend on others for food
  Example: Humans and animals

Importance

Without proper nutrition, the body cannot function properly, grow, or stay healthy. Nutrition is necessary for the survival of all living organisms.