BIO 141 EXAM 1 NVCC 2026 PRACTICE TEST
QUESTIONS AND DETAILED BIOLOGY
CONTENT BREAKDOWN FULL REVIEW
◉ scientific method. Answer: common elements and procedures
followed by scientific investigators
◉ well defined, testable, with measurable and controllable elements.
Answer: For a question to be pursued by scientists, the phenomenon
must be...?
◉ hypothesis. Answer: tentative explanation based on evidence or
data
must be testable and falsifiable
cannot be proven true; can only get evidence to support it
◉ experimentation, additional observations, or the synthesis of
information from a variety of sources. Answer: Ways to test a
hypothesis include...?
,◉ independent variable. Answer: the variable or experimental
condition manipulated or changed
◉ dependent variable. Answer: the variable measured, counted, or
observed in response to the experimental conditions
◉ controlled variables. Answer: experimental conditions that are
held constant and unchanged throughout the course of an
experiment
used in order to limit the number of variables that affect the
dependent variable
◉ procedure. Answer: the stepwise method, or sequence of steps, to
be performed for the experiment
◉ level of treatment. Answer: value set for the independent
variables
ex. If a company is testing a drug, one group may receive a 5mg dose,
another a 10mg dose, and a third a 15mg dose
◉ prediction. Answer: statement about the outcome of an
experiment if the hypothesis was true
, stated in an "if...then..." fashion
◉ help analysis and interpretation of results and enhance the clarity
of presented results. Answer: Purpose of tables and graphs...?
◉ x-axis (abscissa). Answer: The independent variable is graphed on
the ___-axis
◉ y-axis (ordinate). Answer: The dependent variable is graphed on
the ___-axis
◉ line graph. Answer: graphs used to show changes in the quantity
of the chosen variable and emphasize the rise and fall of the values
of their range
used to present continuous quantitative data
◉ bar graph. Answer: graphs often used for data that represent
separate or discontinuous groups or nonnumerical categories, thus
emphasizing the discrete differences between the groups
◉ primary reference. Answer: research that is peer reviewed and
published in a scientific journal
QUESTIONS AND DETAILED BIOLOGY
CONTENT BREAKDOWN FULL REVIEW
◉ scientific method. Answer: common elements and procedures
followed by scientific investigators
◉ well defined, testable, with measurable and controllable elements.
Answer: For a question to be pursued by scientists, the phenomenon
must be...?
◉ hypothesis. Answer: tentative explanation based on evidence or
data
must be testable and falsifiable
cannot be proven true; can only get evidence to support it
◉ experimentation, additional observations, or the synthesis of
information from a variety of sources. Answer: Ways to test a
hypothesis include...?
,◉ independent variable. Answer: the variable or experimental
condition manipulated or changed
◉ dependent variable. Answer: the variable measured, counted, or
observed in response to the experimental conditions
◉ controlled variables. Answer: experimental conditions that are
held constant and unchanged throughout the course of an
experiment
used in order to limit the number of variables that affect the
dependent variable
◉ procedure. Answer: the stepwise method, or sequence of steps, to
be performed for the experiment
◉ level of treatment. Answer: value set for the independent
variables
ex. If a company is testing a drug, one group may receive a 5mg dose,
another a 10mg dose, and a third a 15mg dose
◉ prediction. Answer: statement about the outcome of an
experiment if the hypothesis was true
, stated in an "if...then..." fashion
◉ help analysis and interpretation of results and enhance the clarity
of presented results. Answer: Purpose of tables and graphs...?
◉ x-axis (abscissa). Answer: The independent variable is graphed on
the ___-axis
◉ y-axis (ordinate). Answer: The dependent variable is graphed on
the ___-axis
◉ line graph. Answer: graphs used to show changes in the quantity
of the chosen variable and emphasize the rise and fall of the values
of their range
used to present continuous quantitative data
◉ bar graph. Answer: graphs often used for data that represent
separate or discontinuous groups or nonnumerical categories, thus
emphasizing the discrete differences between the groups
◉ primary reference. Answer: research that is peer reviewed and
published in a scientific journal
