Here's a breakdown:
* Cells: The basic building blocks of all living organisms.
* Tissue: A collection of similar cells that work together to perform a specific function.
* Organ: A structure made up of different tissues that work together to perform a more complex function.
* Organ System: A group of organs that work together to carry out major bodily functions.
* Organism: A complete living being made up of organ systems.
Examples of tissues:
* Muscle tissue: Contracts to produce movement.
* Nervous tissue: Transmits electrical signals to communicate throughout the body.
* Epithelial tissue: Covers and protects surfaces, such as the skin and lining of internal organs.
* Connective tissue: Provides support and connects other tissues, such as bone, blood, and cartilage.
