Chapter 2:
Biology as a Science
Practice Test
1.
What kind of magnifying tool has a resolving power of about 500 nanometers (nm)?
a.
a scanning electron microscope
b.
a transmission electron microscope
c.
a compound light microscope
d.
a magnifying glass
Hint
2.
Which kind of magnifying tool would you use if you wanted to observe the surface of a cell?
a.
a compound light microscope
b.
a scanning electron microscope
c.
a magnifying glass
d.
a transmission electron microscope
Hint
3.
Which of these is a change that results from the manipulation of the independent variable in an experiment?
a.
dependent variable
b.
hypothesis
c.
observation
d.
control group
Hint
4.
What is the prefix in SI that means one thousand?
a.
milli-
b.
deci-
c.
kilo-
d.
centi-
Hint
5.
What is the group of experimental subjects in which all the variables remain constant?
a.
control group
b.
constant group
c.
variable group
d.
experimental group
Hint
6.
Which type of graph would you use to show comparisons among groups when data are not dependent upon one another?
a.
pie graph
b.
bar graph
c.
line graph
d.
cycle concept map
Hint
7.
You observe that when you drop a ball, it falls to the ground. In fact, anytime you drop a ball, it falls downward. What is this an example of?
a.
a proof
b.
a law
c.
a theory
d.
a principle
Hint
8.
___________ is a process that produces a body of knowledge about nature.
a.
Discussion
b.
Technology
c.
Development
d.
Science
Hint
9.
Which kind of magnifying tool would you use if you wanted to observe the parts of a cell?
a.
a transmission electron microscope
b.
a scanning electron microscope
c.
a compound light microscope
d.
a magnifying glass
Hint
10.
What is a hypothesis that has held up well over long periods of time and many, many observations or experiments?
a.
a proof
b.
a principle
c.
a theory
d.
a law
Hint
