Levels of Organization

Cells

Cells are the basic building blocks of life.  They are characterized by their job and size.       

Examples: Paramecium

Volvox

Plants

Tissues

Tissues are made of a group of  cells that are alike, that work together to do a specific job in the body.

Examples: Ground Tissue

Vascular Tissue

Dermal

Organs

An organ is a group of tissues that work together to complete a specific job.

Examples: The Brain

Lungs

Stomach

Organ Systems

The organ systems are groups of organs working together to complete different jobs.

Organisms

Organisms are all the cells,tissues,organs together that work together to make an organism.

Examples: Algae

People

Animals

Population

The same type of organisms living in a group in the same place.

Examples

Ecosystems

Ecosystems are the populations all living together in that area.

Examples

Biospheres

All ecosystems together create a biosphere

Examples