The Levels of Organization
Life is organized into 5 levels:
The cell is the basic unit of structure and function of a living thing.
Cells are specialized by size and shape for the job they do
Single Celled Organisms (Amoeba)
Cells of Multi Cellular Organisms (Red Blood Cells)
Tissues are made of a group of similar cells that work together to do a specific job in the body.
: 4 different types of animal tissues are epithelial, muscle, nervous, and connective.
Organs are made up of two or more tissues that work together to do a specific job.
a heart is an organ made of all four tissues.
An organ system is a group of organs working together to perform particular jobs.
Sum of all cells, tissues, organs and organ systems makes an organism. An organisms is made when a group of organ systems work together
A group of the same type of organisms all living together in the same place.
All the ecosystems around the world make up the biosphere.