1. Levels of Organization

2. Non living
Atoms- Smallest part of matter
Molecule – 2 + bonded atoms

3. Living:
Cell
Made of organelles
Basic unit of life

4. Tissue
The same kind cell working together

5. Organs
Tissues that work together
ex. Heart, lung

6. Organ Systems Organs that work together ex. Skeletal system
Muscular system

7. Organism Entire living things (organisms) Usually made of systems
May be a single cell
Living

8. Population
Same type of organism living together

9. Community
Several populations living together
Population interact

10. Ecosystem
Biotic (living) community plus the abiotic (nonliving) features

11. Biome
Similar ecosystems on earth together

12. Biosphere Whole living layer around the globe
Includes abiotic features

13. Organelle Cell Tissue Organ Organ System Organism Atom Molecule
Macromolecule
Organelle
Cell
Tissue
Organ
Organ System
Organism
Population
Community
Ecosystem
Biome
Biosphere