Levels of Organization Quiz

What is the smallest and first level of organization in an organism?

• Cell

• Tissue

• Organism

What is the second level of organization in an organism? It is made of cells.

• cell

• tissue

• organ

What is the third largest level of organization in organisms? It is made up of tissues.

• cell

• tissue

• organ

What is the fourth largest level of organization in organisms? It is made up of two or more organs.

• organ

• organ system

• organism

What is the largest level of organization in organisms? It can be made of one or more organ systems.

• organ

• organ system

• organism

Which of the following is the smallest unit (or building block) of life?

• cell

• organ

• organism

If you were to combine the organs of the brain, spinal chord and nerves, you would get a __________ __________.

• organ

• cell

• organ system

What would happen if one organ, in an organ system, stopped working? (For example if your heart stopped working, what would happen to your circulatory (blood delivery) system?

• It wouldn't work as well, and the other organ systems would suffer.

• It would work better, and the other organ systems would do even better.

• It would work just the same, and nothing would change for any of the organ systems.