1. Levels of Organizations of an Organism - Organelles
The smallest part of organism organization is the organelle.
The organelle performs specialized functions for the cell.
Different organelles work together for the benefit of the whole cell.
Because they are parts of a cell, they are also smaller than a cell.

2. Levels of Organizations – The Cell (continued)
When a bunch of organelles work together they form a cell
In single celled organisms, the cell is the highest level of organization.
In multicellular organisms, the cell is only they second level.

3. Levels of Organizations - Organ System (continued)
The next level of organization is the organ system.
An Organ system is a group of organs that work together to perform a specialized function

4. Levels of Organizations - Tissue (continued)
In multicellular organisms, the next level of organization is the tissue.
Tissue is a group of the same types of cells that work together to perform a specialized function

5. Levels of Organizations - Organism (continued)
The next level of organization is the Organism.
An organism is a group of organ systems working together to maintain homeostasis for an individual.

6. Levels of Organizations - Organ (continued)
The next level of organization is the organ.
Organs are a group of tissues that work together to perform a specialized function

7. Lets review the order of organization.
Organism
Complex
Organ System
Organ
Tissue
Cell
Organelle
Simple

8. How many Organ systems are there?
Nervous System
Muscular System
Excretory System
Skeletal System
Digestive System
Respiratory System
Immune System
Endocrine System
Circulatory System
Reproductive System