THE LEVELS OF ORGANIZATION
The cell is the basic unit of structure and function of a living thing.
-There are two kind of cells called Animal Cell and Plant Cell.
Tissues are made of a group of similar cells that work together to do a specific job in the body.
-There are 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.
- It have more than 1 Organ.
An organ system is a group of organs working together to perform particular jobs.
- There are 6 kinds of Organ System in the human body.
An organisms is made when a group of organ systems work together.
- It have many organism on earth.