1. The Hierarchy or Levels of Biological Organization

2. units of matter below the size of an atom
Subatomic (particle)
units of matter below the size of an atom

3. Atom basic unit of matter

4. Molecule electrically neutral group of two or more atoms held together by covalent chemical bonds (Compound- pure chemical substance consisting of two or more different chemical elements)
Caffeine

5. Macromolecule
very large molecule, composed of hundreds or thousands of atoms
DNA or protein, esp. a polymer,

6. Organelle
Specialized part of a cell having some specific function

7. Cells
Basic unit of life

8. Tissue
a group of cells that perform a similar function

9. Organs
a collection of tissues joined as unit to serve a common function;

10. is a group of organs that work together to perform a certain task.
Organ Systems
is a group of organs that work together to perform a certain task.

11. Organism
A single individual

12. Population
A group of organisms of the same type (species) living in the same area.

13. Bacteria (That’s too small to see.)
Community
Populations that live together in a given area.(Human population, House Elf population, Bacteria population)
Pretend living thing!
Bacteria (That’s too small to see.)

14. Ecosystem
Communities and the nonliving surroundings. (Urban Ecosystem)

15. A major regional or global biotic community
Biome
A major regional or global biotic community
Deciduous Forest of England

16. Hogwarts is around the other side.
Biosphere
All of the land, water and air (biomes) where organisms can live.

17. Earth
Planets
Solar Systems
Galaxies
Universe

18. Realm of Ecology