Objective - Understand that microorganisms are found almost everywhere.
Name _________________________________________________________
Diversity of Living Things 1.1 – Worksheet
Match the term with its definition. (Definitions are found at the beginning of each section.)
_____1. Algae
A. A very small organism.
_____2. Archae
B. Organisms that can survive in environments that are
very hot, very cold, or contain poisonous to most living
things.
_____3. Bacteria
_____4. Decomposer
_____5. Microorganisms
_____6. Plankton
C. Organisms that drift in water.
D. Organisms that get energy by breaking down dead or
decaying organisms.
E. Organisms that make their own food from sunlight.
_____7. Producer
F. Single- and multi-celled protists that use sunlight as an
energy source.
_____8. Protozoa
G. The simplest kind of life known on Earth.
H. They eat other organisms or decaying parts of other
organisms; animal-like.
1.1 – Single-celled organisms have all of the characteristics of living things.
9. This organism covers an area of over 1,600 football fields. What is this living thing?
a. Algae
b. Bacteria
c. Fungi
d. Protozoan
10. For every living thing that is large enough to be seen, there are often fewer
numbers of smaller living things that have the same living space.
a. True
b. False
11. The tiny ___________ living inside your body are organisms.
a. archae
b. fungi
c. algae
d. bacteria
Objective - Understand that microorganisms are found almost everywhere.
12. Compare and contrast the words microorganism and organism. (There are two or
more answers to this question.)
a. An organism is any living thing.
b. Only microorganisms are living.
c. Only organisms are living.
d. Microorganisms are living things too small to see.
13. This may be living space for many organisms in a mangrove swamp.
a. Trees
b. Roots of trees
c. A single drop of water
d. Grasslands
14. Living things are… (There are two or more answers to this question.)
a. able to grow.
b. organized.
c. able to reproduce.
d. able to respond to the environment.
15. The _________ is the basic unit of life.
a. microorganism
b. cell
c. virus
d. heart
16. All single-celled organisms contain everything they need to survive.
a. True
b. False
17. Microorganisms are made up of how many cells?
a. 1
b. 2
c. 3
d. many
18. All living things need…
a. food.
b. energy.
c. light.
d. nourishment.
19. The ability to respond allows a microorganism to… (There are two or more
answers to this question.)
a. find food.
b. perform tasks necessary to survive.
c. avoid being eaten.
d. reproduce.
Objective - Understand that microorganisms are found almost everywhere.
20. Most of the activities of living things take place in…
a. air.
b. body.
c. the environment.
d. water.
Use the graph to answer questions #21-#23.
Growth of Bacteria Over Time
Number of Bacteria
140
128
120
100
80
64
60
40
32
20
0
1
1
2
16
4
5
6
Hours
21. How many bacteria are in the colony after three hours?
a. 1
b. 2
c. 4
2
4
8
3
7
8
e. 16
f. 32
g. 64
22. After seven hours, how many bacteria are in the colony?
a. 1
b. 2
c. 4
d. 8
e. 16
f. 32
g. 64
h. 128
23. Suppose the colony continues growing. How many bacteria will there be after
nine hours?
a. 256
b. 512
c. 1014
d. 2028
Objective - Understand that microorganisms are found almost everywhere.
Diversity of Living Things 1.1 – Worksheet – Key
1.1 – Single-celled organisms have all of the characteristics of living things.
F 1. Algae
B 2. Archae
G 3. Bacteria
D 4. Decomposer
A 5. Microorganisms
C 6. Plankton
E 7. Producer
H 8. Protozoa
9. This organism covers an area of over 1,600 football fields. What is this living thing?
c. Fungi
10. For every living thing that is large enough to be seen, there are often fewer
numbers of smaller living things that have the same living space.
b. False
11. The tiny ___________ living inside your body are organisms.
d. Bacteria
Objective - Understand that microorganisms are found almost everywhere.
12. Compare and contrast the words microorganism and organism. (There are two or
more answers to this question.)
a. An organism is any living thing; d. Microorganisms are living things too
small to see.
13. This may be living space for many organisms in a mangrove swamp.
c. A single drop of water.
14. Living things are… (There are two or more answers to this question.)
a. able to grow; b. organized; c. able to reproduce; d. able to respond to
the environment.
15. The _________ is the basic unit of life.
b. cell
16. All single-celled organisms contain everything they need to survive.
a. True
17. Microorganisms are made up of how many cells?
a. 1
18. All living things need…
b. energy.
19. The ability to respond allows a microorganism to… (There are two or more
answers to this question.)
a. find food; b. perform tasks necessary to survive; c. avoid being eaten.
Objective - Understand that microorganisms are found almost everywhere.
20. Most of the activities of living things take place in…
d. water.
21. How many bacteria are in the colony after three hours?
c. 4
22. After seven hours, how many bacteria are in the colony?
g. 64
23. Suppose the colony continues growing. How many bacteria will there be after
nine hours?
a. 256
Objective - Understand that microorganisms are found almost everywhere.
Diversity of Living Things 1.1 – Worksheet – Scoring Guide
1. F (8 choices)
2. B (8 choices)
3. G (8 choices)
4. D (8 choices)
5. A (8 choices)
6. C (8 choices)
7. E (8 choices)
8. H (8 choices)
9. c
10. b (2 choices)
11. d
12. a, d
13. c
14. a,b,c,d
15. b
16. a (2 choices)
17. a
18. b
19. a,b,c
20 d.
21. c (8 choices)
22. g (8 choices)
23. a
Scoring Guide
21-23 – 4
15-20 – 3
7-14 – 2
1-8 – 1
0–0