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Levels of Organization Review

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.

The basic units or "building blocks" of life are called

a)

cells

b)

molecules

c)

organisms

d)

tissues

2.

Which of the following is the most complex level of organization in living things.

a)

organ

b)

cell

c)

organ system

d)

organism

3.

Which of the following is an example of an organism?

a)

a skull bone

b)

mouse

c)

a nerve cell

d)

skin

4.

What is the smallest part of non-living things?

a)

atoms

b)

cells

c)

molecules

d)

organisms

5.

Which of the following is an example of an organ?

a)

inner lining of the stomach

b)

digestive system

c)

large intestine

d)

muscle fiber

6.

What are organs made out of?

a)

cells

b)

organisms

c)

tissues

d)

organ systems

7.

The stomach is an example of an:

a)

organ

b)

organ system

c)

organism

d)

tissue

8.

Select the smallest level of organization among the following:

a)

community

b)

organ system

c)

organism

d)

population

9.

A group of similarly structured cells working together combine to form:

a)

tissue

b)

atom

c)

organ system

d)

organism

10.

Life is organized in a hierarchical fashion. which of the following sequences illustrates that hierarchy as it goes upward?

a)

ecosystem, population, organ system, cell, community, molecule, organ, organism

b)

cell, molecule, organ system, organ, population, organism, ecosystem, community

c)

organism, organ system, population, organ, community, cell ecosystem, molecule

d)

molecule, cell, organ, organ system, organism,population, community, ecosystem

11.

What is a tissue?

a)

a system made form similar organs

b)

a group of cells with similar structures working together

c)

a group of organelles with similar structures working together

d)

two or more atoms bonded together

12.

In plants what are leaves examples of

a)

organ

b)

organ system

c)

tissue

d)

organism

13.

All members of all species in a certain area is an

a)

biosphere

b)

community

c)

population

d)

family

14.

The prefix bio refers to what

a)

study of life

b)

study of earth

c)

tissues

d)

heat

15.

Organs are two or more ___________________ coming together to perform a function.

a)

organs

b)

cells

c)

atoms

d)

tissues

16.

The image shows a group of plant cells. A group of similarly structured cells working together combine to form a:

a)

tissue

b)

atom

c)

organ system

d)

organism

17.

The image shows a human body with several different types of muscle tissues that work together in the human body. What option would best describe the level of organization for a group of muscle tissue?

a)

organ

b)

organ system

c)

organism

d)

cells

18.

The picture shows a cross-section of a plant stem viewed through a microscope. The encircled area "Y" identifies a specific tissue in the plant. Which option best identifies the hierarchical level of organization that tissue is made of?

a)

organelles

b)

cells

c)

molecules

d)

organisms

19.

Which of the following correctly orders the levels of organization from lowest to highest level?

a)

atom, molecule, cell, tissue, organ, organ system, organism

b)

organ, organ system, tissue cell, molecule, atom, organism

c)

organism, atom, molecule, oran organ system, cell tissue

d)

atom, molecule, organ, tissue, cell, organ system, organism

20.

In plants, what are shoots and roots examples of?

a)

organs

b)

organ systems

c)

tissues

d)

organisms