2. CELL
•A cell is the smallest living unit.
TISSUE
•Cells work together to form tissue
ORGANS
•Tissues work together to form
organs
3. SYSTEMS
Organs that group together form systems
Can you remember?
- Circulatory system.
- Excretory system.
- Respiratory system.
- Digestive system.
- Nervous system.
4. ORGANISM OR LIVING THING
• Systems work together to form an organism or living thing