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Levels of Organization in Biology

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What is the smallest unit of life in the body?

a)

Tissue

b)

Cell

c)

Organ

d)

Organ system

2.

Which of the following is an example of a tissue?

a)

Heart

b)

Skin

c)

Red blood cell

d)

Nervous system

3.

Which level of organization is made up of a group of similar cells performing a specific function?

a)

Organ

b)

Tissue

c)

Organ system

d)

Organism

4.

Which level of organization includes organs working together?

a)

Cell

b)

Tissue

c)

Organ system

d)

Organism

5.

What level of organization is represented by the human body as a whole?

a)

Organ system

b)

Tissue

c)

Organism

d)

Cell

6.

Which of the following is an example of an organ system?

a)

Heart

b)

Digestive system

c)

Muscle

d)

Skin

7.

The stomach is an example of which level of organization?

a)

Organ

b)

Cell

c)

Tissue

d)

Organ system

8.

Which term describes a group of organs that work together to perform complex functions?

a)

Tissue

b)

Organ system

c)

Cell

d)

Organ

9.

What level of organization is the brain classified under?

a)

Organ

b)

Tissue

c)

Cell

d)

Organ system

10.

Which of the following is the correct order of levels of organization from simplest to most complex?

a)

Cell, organ, tissue, organism, organ system

b)

Cell, tissue, organ, organ system, organism

c)

Organism, organ system, organ, tissue, cell

d)

Tissue, cell, organ, organism, organ system