Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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The
work of scientists begins with a. | testing a hypothesis. | c. | creating experiments. | b. | careful
observations. | d. | drawing
conclusions. | | | | |
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2.
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Hypotheses may arise from a. | prior knowledge. | c. | imaginative guesses. | b. | logical
inferences. | d. | all of the
above | | | | |
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3.
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A
controlled experiment allows the scientist to isolate and test a. | a
conclusion. | c. | several
variables. | b. | a mass of information. | d. | a single variable. | | | | |
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4.
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Scientists publish the details of important experiments so that a. | their work can
be repeated. | b. | their experimental procedures can be
reviewed. | c. | others can try to reproduce the
results. | d. | all of the above | | |
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5.
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A
well-tested explanation that unifies a broad range of observations is a(an) a. | hypothesis. | c. | inference. | b. | theory. | d. | controlled experiment. | | | | |
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6.
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All
of the following are characteristics of all living things EXCEPT a. | growth. | c. | movement. | b. | reproduction. | d. | use of energy. | | | | |
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7.
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Biology is the study of a. | the land, water, and air on Earth. | b. | living
things. | c. | animals and plants only. | d. | the
environment. | | |
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8.
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The
process by which organisms keep their internal conditions fairly constant is called a. | homeostasis. | c. | metabolism | b. | evolution. | d. | photosynthesis. | | | | |
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9.
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What
is the term for a group of organisms of one type living in the same place? a. | biosphere | c. | population | b. | ecosystem | d. | environment | | | | |
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10.
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In
the metric system, the basic unit of length is the a. | centimeter. | c. | millimeter. | b. | kilometer. | d. | meter. | | | | |
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11.
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Which
is NOT a unit of measurement in the International System of Units, or SI? a. | meter | c. | liter | b. | ounce | d. | gram | | | | |
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12.
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An
instrument that allows light to pass through the specimen and uses two lenses to form an image is
a(an) a. | compound light
microscope. | c. | TEM. | b. | electron microscope. | d. | SEM. | | | | |
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13.
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What
is the term given to a group of cells that develop from a single original cell? a. | community | c. | nutrient
solution | b. | cell culture | d. | cell fractionation | | | | |
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14.
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What
technique is used to separate the different cell parts? a. | microscopy | c. | cell
fractionation | b. | cell culture | d. | all of the above | | | | |
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15.
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Safety procedures are important when working a. | in a
laboratory. | c. | with
animals. | b. | in the field. | d. | all of the above | | | | |
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Completion
Complete each sentence or
statement.
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16.
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The
information gathered from observation is called ____________________.
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17.
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The
smallest units that are considered to be alive are called ____________________.
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18.
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A
revised version of the original ____________________ system is called SI, an abbreviation for the
Système International d’Unités.
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19.
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The
_________________________ microscope is generally used in high-school laboratories.
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20.
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An
instrument used to separate cell parts is called a(an) ____________________.
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Short Answer
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21.
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What
is an inference?
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22.
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What
is a hypothesis?
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23.
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What
are five of the levels of organization that biologists study?
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24.
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What
does cell fractionation allow a scientist to study?
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25.
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What
safety precaution must you carry out after every scientific activity?
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Other
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USING SCIENCE SKILLS
Common Metric Units | Length | Mass | 1 meter (m) =
100 centimeters (cm)
1 meter = 1000 millimeters (mm)
1000 meters = 1
kilometer (km) | 1 kilogram (kg) = 1000 grams (g)
1 gram = 1000
milligrams (mg)
1000 kilograms = 1 metric ton (t) | Volume | Temperature | 1 liter (L) =
1000 milliliters (mL)
1 liter = 1000 cubic centimeters
(cm3) | 0ºC = freezing point of water
100ºC =
boiling point of water | | |
Figure 1-2
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26.
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Using Tables and Graphs What four common metric units in Figure 1-2 are used to
measure length?
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27.
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Applying Concepts Referring to Figure 1-2, why are conversions easier to do
using the metric system rather than using traditional English units, such as inches, feet, and
yards?
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28.
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Applying Concepts Using Figure 1-2, what number does the prefix kilo-
represent?
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29.
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Using Tables and Graphs What is the boiling point of water, in degrees
Celsius?
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30.
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Calculating If you have 2 L of water, how many milliliters do you
have?
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