1. Levels of Organization

2. Atom Smallest unit of Matter Examples: NONLIVING Carbon Atom
Oxygen Atom
Nitrogen Atom
NONLIVING

3. Molecule
Smallest unit of a substance that retains its original properties
Examples:
Carbon Dioxide
Caffeine
Carbohydrates
NONLIVING

4. Organelle A cell structure with a specific job Examples: NONLIVING
Ribosome
Chloroplast
Mitochondria
NONLIVING

5. Cell
The SMALLEST thing that meets ALL of the Characteristics of Life; performs all functions of life
Examples:
Plant Cell
Animal Cell
Bacterial Cell
LIVING

6. Tissue
A group of cells that work together to perform a common function
Examples:
Connective Tissue
Muscle Tissue
Nervous Tissue
LIVING

7. Organ A group of tissues working together to perform a common function
Examples:
Heart
Liver
Skin
LIVING

8. Organ System
A group of Organs working together to perform a common function
Examples
Digestive System
Cardiovascular System
Skeletal System
LIVING

9. Organism
A living thing made of many cells which are specialized to perform different functions necessary for the organism to live
Examples:
Grasshopper
Human
Starfish
LIVING!!!

10. POPULATION
a group of organisms of one species living in the same place at the same time that interbreed
Produce fertile offspring
Compete with each other for resources (food, mates, shelter, etc.)
The next level is a population. A population consists of a single species living together and breeding. Give me an example of a population. Ex. large mouth bass living in Lake Meade. Beetles living under the same log. Here we have salmon spwning and two bears fishing.

11. Community - several interacting populations that inhabit a common environment and are interdependent.
Next level is a community which is several populations living together and depending on each other. What does interdependent mean? An example of a community is shown here with the bear and the salmon. They both live in a common environment and the bear needs the fish for food? How does the salmon need the bear?

12. Ecosystem - populations in a community and the abiotic factors with which they interact (ex. marine, terrestrial)

13. Deciduous Forest, Coniferous Forest, Tundra, Freshwater, Marine
Biome- very large regions that contain a number of smaller ecosystems within them
All ecosystems within a biome have similar climates (temperature, rainfall) & organisms
Tropical Rainforest, Temperate Rainforest, Desert, Grassland, Savanna very
Deciduous Forest, Coniferous Forest, Tundra, Freshwater, Marine
Rainforest Biome

14. The highest level of organization
Biosphere - life supporting portions of Earth composed of air, land, fresh water, and salt water.
The highest level of organization
Lets review. Organisms make up populations, populations make up communities, communities and abiotic factors make up ecosystems, and all of the ecosystems make up the biosphere. From one to many and each depending on the other.