New News Biology #9

Cell Organization

Make up of a multi-cellular organism (e.g. human), in order:

The Cell; the basic unit in all of life

Tissue; a group of similar cells that work together to carry out a particular function

Organs; different tissues combined (e.g. the heart, the brain, etc.)

Organ Systems; multiple organs working together for a designated purpose. (e.g. the cardiovascular system, the digestive system, etc.)

The Organism