1. How is the body organized?

2. Cell  Microscopic  Made up of organelles  All living things are made up of cells

3. Organelle  Substructure of a cell  It performs a specific function  Found inside the cell

6. Tissue  A group of cells working together form a tissue.  Ex: Muscle cells working together form muscle tissue

8. Organ  One or more tissues working together to perform a specific function.  Ex. stomach, skin, liver

9. kidneylungs

10. Organ System  Two or more organs that work together to perform a specific process.  Ex. Stomach, small intestine, large intestine all work together to form the digestive system.

11. Digestive system

12. Organism  When all organ systems work together and create a living thing  Ex. fungi, plants, animals

14. cells tissues organs organelles Organ systems organism

15. There are many different types of cells! They have a variety of sizes and shapes! Why is this?  Each type of cell carries out a different function  Ex. Muscle cells, nerve cells, sperm cells