Levels of Organization

Cells:

The cell is the basic unit of structure and function of a living thing. The cells are specialized for their specific job.Examples... blood cell, amobea, volvox.

T I S S U E S

tissues work in a group of alike cells to get their job done in the body. Examples are ...epithelial, muscle, nervous, and connective.

Organs

Made up of two or more tissues that work together to do their specific job. Examples heart,liver,lungs

Organ Systems

a group of organs working together to do certain jobs. Examples...circulatory, reproductive, digestive, nervous, respiratory.

Organisms

All cells,tissues,organs and organ systems makes an organism and is is made when a group of organ systems work together.Examples...humans, cats,and dogs