This diagram illustrates the hierarchical organization of life, from the simplest unit, the cell, to the most complex, the organism.
1. Cell:
- The fundamental building block of all living things.
- Examples: muscle cell, nerve cell, blood cell.
2. Tissue:
- A group of similar cells working together to perform a specific function.
- Examples: muscle tissue, nervous tissue, blood tissue.
3. Organ:
- A structure composed of different tissues that work together to perform a complex function.
- Examples: heart, brain, stomach, lungs.
4. Organ System:
- A group of organs that work together to perform a major bodily function.
- Examples: circulatory system, nervous system, digestive system, respiratory system.
5. Organism:
- A complete living being composed of multiple organ systems working in harmony.
- Examples: human, animal, plant.
Diagram:
```
Organism
/ \
Organ System Organ System
/ \ / \
Organ Organ Organ Organ
/ \ / \ / \ / \
Tissue Tissue Tissue Tissue Tissue Tissue Tissue Tissue
/ \ / \ / \ / \ / \ / \ / \ / \ / \ / \ / \ / \
Cell Cell Cell Cell Cell Cell Cell Cell Cell Cell Cell Cell
```
This diagram is a simplified representation, and there can be further subdivisions within each level. For example, an organ system can be divided into subsystems, and a tissue can be further classified into different types.
