Levels of Organization
Cells are the basic building blocks of life. They are characterized by their job and size.
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
An organ is a group of tissues that work together to complete a specific job.
Examples: The Brain
The organ systems are groups of organs working together to complete different jobs.
Organisms are all the cells,tissues,organs together that work together to make an organism.
The same type of organisms living in a group in the same place.
Ecosystems are the populations all living together in that area.
All ecosystems together create a biosphere