Levels of organisation

Multicellular living things are made up of many different types of cells. These cells work together to same function.

• CELLS: The first level of organization is the cell.

• TISSUES: They are groups of the same type of cells. All cells which form a tissue perform the same function   Example:Animals have muscle tissue which consist of many muscle cells

• ORGANS: Tissues join together to form organs. Tissues in organs work together to perform a common function.   Example: Muscle tissues join together to make the muscle organ.

• SYSTEM: Several organs that perform a function together form a system, such as the digestive system.

• ORGANISM: finally , all the different types of systems work together to form an organism. In a multicellular living thing, cells, tissues, organs and systems all work together so the organism works correctly