1. Organization and relationship of matter and living organisms
Hierarchy of Life
Organization and relationship of matter and living organisms

2. 1. Atom Smallest, indivisible particle of matter.
Cannot be divided by chemical means.
Ex. Elements on periodic table

3. 2. Molecule
Group or 2 or more atoms held together
by chemical bonds

4. ex. Biochemical Molecules
Molecules that are part of living organisms
Ex. DNA, Carbohydrates, etc.

5. 3. Cell and Organelles Basic unit of lfe
Made of nucleus, cytoplasm, cell membrane, and organelles
Structure of each made
from biochemical molecules

6. 4. tissues A group of similar cells that have a
common structure and function

7. 5. Organ A structure composed of two or
more tissues types performing one or
more specific functions

8. 6. Systems A group of organs and tissues
Working together to accomplish
a common function.

9. 7. Organism All the organ systems together make up the living body.
Highest level of cellular organization

10. 8. ecology
Relates organisms to each other and there physical environment
Populations, community, ecosystems etc. (sec. IV Science)