Definition
The immune system is the body’s defense system that protects us from harmful germs like bacteria and viruses.
Main Details
It includes organs, cells, and proteins that work together
White blood cells fight infections
It can recognize harmful substances
Definition
Nutrition is the process by which the body takes in food and uses it for energy, growth, repair, and maintaining health.
Main Ideas
The body needs different nutrients to function properly.
Food is broken down during digestion into simple forms.
Nutrients are absorbed and carried through the blood.
🌱 Definition
A food chain is a way of showing how energy and nutrients pass from one living thing to another through eating and being eaten.
🌍 Main Details
It always starts with producers (like plants) that make their own food using sunlight.
Then come consumers (animals that eat plants or other animals).
It ends with decomposers (like fungi and bacteria) that break down dead things.
1. Psychologist
Definition:
A psychologist studies the human mind and behavior.
Main details:
Studies thoughts, emotions, and actions
Talks to people to understand problems
