1. The Levels of Organization of Life
Mod.A U.1 L.4

2. Research Project
Conduct research and make notes on one organ system in a typical animal or plant.
Create a presentation using PowerPoint or similar, to teach the class.
Between slides.

3. Must show:
Structure - of whole system and component organs. Include cell structure
Function – How the organs work together to meet the needs of the organism
What happens if the system or an organ in the system is diseased or has a disorder
Any other important fact.

4. Levels of Organization
Atom
Molecule
Organelles
Cell
Tissue
Organ
Organ System
Organism
Population
Community
Ecosystem
Biomes

5. Basic building block of all matter.
Atom
Basic building block of all matter.

6. Group of atoms held together by covalent bonds; has no overall charge.
Molecule
Group of atoms held together by covalent bonds; has no overall charge.

7. Organelles -

8. Basic unit of all organisms; all living things are composed of cells.
All cell parts built up from molecules of proteins, lipids, carbohydrates, etc
Cell

9. Types of Cells Cells can be specialized -have a certain function
Function = job
Function is related structure
Structure = how parts of the cell are put together
Shape
Material it’s made from
Structure of a brain cell is different from muscle cell – so different functions

10. Tissue - Groups of cells that work together to perform a specific function.

11. For example, red blood cells carry oxygen throughout the body
For example, red blood cells carry oxygen throughout the body. Their thin, flexible structure helps them squeeze through tiny blood vessels.

12. Organ
Group of tissues organized to perform complex activities within an organism.

13. Multiple organs that work together to perform a specific life function.
Organ System

14. Anything that possesses all the characteristics of living things.
Made up of many organ systems working together.
Organism

15. Population
Group of organisms of one species that interbreed and live in the same place at the same time.

16. Community
Collection of several interacting populations that inhabit a common environment.

17. Ecosystem Interactions among populations in a community
(biotic factors) and the community’s physical surroundings (abiotic factors).

18. Biomes A collection of ecosystems around the world
Regions of the world with similar climate (weather, temperature) animals and plants.
There are terrestrial biomes (land) and aquatic biomes, both freshwater and marine.