1. Levels of Organization
Medical Science I

2. Where are you?

3. Where are you?

4. Where are you?
A102

5. Levels of Organization
Community
Group of populations that live together in a defined area (Ex: businesses, people, pets, etc. in Alvin)
Population
Group of individuals of the same species that live in the same area (Ex: Latinos in Alvin)

6. Levels of Organization
Organism
Individual form of life (ex: human)
Organ System
Group of organs that work together to perform a specific function (ex: digestive system)

7. Levels of Organization
Group of tissues that work together to perform closely related functions (Ex: stomach)
Tissue
Group of similar cells that perform a particular function (Ex: Connective tissue)

8. Levels of Organization
Cell
Basic structure of animals (Ex: muscle cell)
Nucleus
An organelle in the cell containing chromosomes (Ex: human nucleus with 46 chromosomes)

9. Levels of Organization
Chromosome
Structures with chemical instructions divided in sections called genes (Ex: chromosome #3)
Gene
Sequence of DNA that codes for proteins and determines a trait (Ex: gene for eye color)

10. Levels of Organization
DNA
Deoxyribonucleic acid