Levels of Organization of Organisms

Front

What is a cell?

Back

The basic unit of life that can perform all life processes.

Front

What is a tissue?

Back

A group of cells that work together to perform a specific function.

Front

What is an organ?

Back

A group of tissues that work together to perform a specific function (e.g., heart, lungs).

Front

What is an organ system?

Back

A group of organs that work together to perform complex functions in the body.

Front

What is an organism?

Back

A living thing that can function independently and is made up of multiple organ systems.

Front

What is the correct order of organization in living things from simplest to most complex?

Back

Cell, tissue, organ, organ system, organism.

Front

What is the difference between a cell and a tissue?

Back

A cell is the basic unit of life; a tissue is a group of cells that work as one.

Front

What do many organ systems working together form?

Back

An organism.

Front

What is an example of a tissue?

Back

Muscle tissue, which helps in movement.

Front

What is an example of an organ?

Back

The heart, which pumps blood throughout the body.