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