i U
a
t G
h
uN
ZbU
m
M
,CHAPTER 1
TRUE/FALSE - Write 'T' if the statement is true and 'F' if the statement is false.
1) Members of the same species share many more characteristics compared to those shared
by members of the same kingdom.
⊚ true
⊚ false
2) Viruses are not classified in any of Whittaker's five kingdoms.
⊚
⊚
true
false
U
a
3)
G i
Members of the kingdom Fungi are photosynthetic.
h
⊚
⊚
true
false uNt
4)
U
A scientist studying helminths is working with bacteria.
Zb
⊚ true
⊚ false
m
M
5) The fossil record has established that prokaryotes existed on Earth for approximately two
billion years before eukaryotes evolved.
⊚ true
⊚ false
6) It has been over 25 years since a new infectious disease has emerged in the world.
⊚ true
⊚ false
7) The term sterile means free of all life-forms.
Version 1 1
, ⊚ true
⊚ false
8) All microorganisms are parasites.
⊚ true
⊚ false
9) During a scientific experiment, the control group is used to directly test or measure the
U
consequences of a variable in the study.
a
⊚ true G
⊚ false h i
10)
N
The scientific method involves formulating a tentative explanation, called the hypothesis,
t
to account for what has been observed or measured.
u
⊚
⊚
true
false
ZbU
11)
m
Once an organism is assigned to a particular taxonomic hierarchy, it is permanent and
cannot be revised. M
⊚ true
⊚ false
12) When the results of an experiment support a hypothesis, the hypothesis can now be
considered a theory.
⊚ true
⊚ false
13) The names of the three proposed domains are: Bacteria, Protista, Eukarya.
⊚ true
⊚ false
Version 1 2
, 14) One distinguishing characteristic of archaeais that they live in extreme environments.
⊚ true
⊚ false
15) Some microorganisms can photosynthesize, but their overall contribution to Earth's
atmospheric oxygen is very small in comparison to plant photosynthesis.
⊚
⊚
true
false
U
a
16)
G i
Any microorganism on or in the human body is considered a pathogen.
h
⊚ true
⊚ false uNt
17)
U
Theories are supported by more evidence than hypotheses.
b
⊚ true
⊚ false m Z
M
MULTIPLE CHOICE - Choose the one alternative that best completes the statement or
answers the question.
18) Disease-causing microorganisms are called
A) decomposers.
B) prokaryotes.
C) pathogens.
D) eukaryotes.
E) fermenters.
19) The microorganisms that recycle nutrients by breaking down dead matter and wastes are
called
Version 1 3
a
t G
h
uN
ZbU
m
M
,CHAPTER 1
TRUE/FALSE - Write 'T' if the statement is true and 'F' if the statement is false.
1) Members of the same species share many more characteristics compared to those shared
by members of the same kingdom.
⊚ true
⊚ false
2) Viruses are not classified in any of Whittaker's five kingdoms.
⊚
⊚
true
false
U
a
3)
G i
Members of the kingdom Fungi are photosynthetic.
h
⊚
⊚
true
false uNt
4)
U
A scientist studying helminths is working with bacteria.
Zb
⊚ true
⊚ false
m
M
5) The fossil record has established that prokaryotes existed on Earth for approximately two
billion years before eukaryotes evolved.
⊚ true
⊚ false
6) It has been over 25 years since a new infectious disease has emerged in the world.
⊚ true
⊚ false
7) The term sterile means free of all life-forms.
Version 1 1
, ⊚ true
⊚ false
8) All microorganisms are parasites.
⊚ true
⊚ false
9) During a scientific experiment, the control group is used to directly test or measure the
U
consequences of a variable in the study.
a
⊚ true G
⊚ false h i
10)
N
The scientific method involves formulating a tentative explanation, called the hypothesis,
t
to account for what has been observed or measured.
u
⊚
⊚
true
false
ZbU
11)
m
Once an organism is assigned to a particular taxonomic hierarchy, it is permanent and
cannot be revised. M
⊚ true
⊚ false
12) When the results of an experiment support a hypothesis, the hypothesis can now be
considered a theory.
⊚ true
⊚ false
13) The names of the three proposed domains are: Bacteria, Protista, Eukarya.
⊚ true
⊚ false
Version 1 2
, 14) One distinguishing characteristic of archaeais that they live in extreme environments.
⊚ true
⊚ false
15) Some microorganisms can photosynthesize, but their overall contribution to Earth's
atmospheric oxygen is very small in comparison to plant photosynthesis.
⊚
⊚
true
false
U
a
16)
G i
Any microorganism on or in the human body is considered a pathogen.
h
⊚ true
⊚ false uNt
17)
U
Theories are supported by more evidence than hypotheses.
b
⊚ true
⊚ false m Z
M
MULTIPLE CHOICE - Choose the one alternative that best completes the statement or
answers the question.
18) Disease-causing microorganisms are called
A) decomposers.
B) prokaryotes.
C) pathogens.
D) eukaryotes.
E) fermenters.
19) The microorganisms that recycle nutrients by breaking down dead matter and wastes are
called
Version 1 3
