Levels of Organization

the cell is the basic structural, functional, and biological unit of all known living organisms.

there is a plant cell an animal cell an blood cell.

The cell is the basic unit of structure and function of a living thing. it has one cell or more.


any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products.

there are  Heart Valves, Upper Body Bone, Skin

Tissues are made of a group of similar cells that work together to do a specific job in the body. they protect the body and make your skin to protect your cells and other things.


a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans.

there is the  Heart, Liver, Lung

Organs are made up of two or more tissues that work together to do a specific job. they help make blood and other things go though your body.

Organ Systems

The human body is made up of several organ systems that work together as one unit. Ten major organ systems of the body are listed below, along with several organs that are associated with each system.

theres stomach,gall bladder,small intestine

An organ system is a group of organs working together to perform particular jobs. to help the body to keep going.


an individual animal, plant, or single-celled life form.

Sum of all cells, tissues, organs and organ systems makes an organism. An organisms is made when a group of organ systems work together.