BIO 200 LAB QUIZZES WITH
COMPLETE SOLUTIONS
Lab quiz #1 - Correct Answers ------
Describe the scientific method
& if reject... - Correct Answers --Make observations
-Ask questions
-Check accumulated scientific data
-Formulate hypothesis
-run multiple controlled experiments
-make conclusions and accept of reject orig hypothesis
-report findings
**if reject.. formulate new hypothesis
Generally a hypothesis leads to very specific --- - Correct Answers -scientific predictions
the prediction made with initial hypothesis is --- - Correct Answers -testable
There are several factors to keep in mind when designing a scientific experiment: (3) -
Correct Answers --variables (need to be tested,measured and held constant)
-controls (to be run)
-replicate (how many times to replicate and experiment)
What facilitates a conditional basis, recognizing that some future technology,
experiment, or other info may facilitate it ? - Correct Answers -the scientific method
When we examine the method of scientific inquiry closely, it is clear then that a single
experiment can prove a hypothesis --- - Correct Answers -false
how easy is it for us to believe that a hypothesis is true? - Correct Answers -it takes
many investigations
Independent variables - Correct Answers -variables that cause changes in dependent
variables
, Dependent variables - Correct Answers -things that are expected to change in response
to variation in independent variables
Standardized variables - Correct Answers -held constant for all subjects in an
experiment
**keep things the same so that it doesn't affect experiment (ex: the same weather during
experiments)
controls in an experiment - Correct Answers -something that you can compare
experiment to
Why is replication and sample size important? - Correct Answers -The more of both, the
more accurate
scientific knowledge gained through the process of scientific investigation is based on -
Correct Answers -generalizations & conclusions drawn from specific observations and
experiments
generalizations & conclusions drawn from specific observations and experiments is
known as - Correct Answers -inductive reasoning
any info gathered through observations & experiments is known as - Correct Answers -
inductive reasoning
any info gathered through inductive reasoning has --- - Correct Answers -a level of
uncertainty
we must rely on observations of --- - Correct Answers -samples
Scientific "facts" are always regarded with a certain level of --- - Correct Answers -
skepticism rather than the absolute truth
New Knowledge is actually an accumulation of -- - Correct Answers -evidence in
support of hypotheses
when we accept a hypothesis as "true" we do so on --- - Correct Answers -a conditional
basis, recognizing that some future technology, experiment, or other info may falsify it
When we prove a hypothesis false, we say that we --- it - Correct Answers -falsify or
refute
Scientists avoid saying that an investigation ---- - Correct Answers -proves a hypothesis
true, recognizing the level of uncertainty involved in inductive reasoning
COMPLETE SOLUTIONS
Lab quiz #1 - Correct Answers ------
Describe the scientific method
& if reject... - Correct Answers --Make observations
-Ask questions
-Check accumulated scientific data
-Formulate hypothesis
-run multiple controlled experiments
-make conclusions and accept of reject orig hypothesis
-report findings
**if reject.. formulate new hypothesis
Generally a hypothesis leads to very specific --- - Correct Answers -scientific predictions
the prediction made with initial hypothesis is --- - Correct Answers -testable
There are several factors to keep in mind when designing a scientific experiment: (3) -
Correct Answers --variables (need to be tested,measured and held constant)
-controls (to be run)
-replicate (how many times to replicate and experiment)
What facilitates a conditional basis, recognizing that some future technology,
experiment, or other info may facilitate it ? - Correct Answers -the scientific method
When we examine the method of scientific inquiry closely, it is clear then that a single
experiment can prove a hypothesis --- - Correct Answers -false
how easy is it for us to believe that a hypothesis is true? - Correct Answers -it takes
many investigations
Independent variables - Correct Answers -variables that cause changes in dependent
variables
, Dependent variables - Correct Answers -things that are expected to change in response
to variation in independent variables
Standardized variables - Correct Answers -held constant for all subjects in an
experiment
**keep things the same so that it doesn't affect experiment (ex: the same weather during
experiments)
controls in an experiment - Correct Answers -something that you can compare
experiment to
Why is replication and sample size important? - Correct Answers -The more of both, the
more accurate
scientific knowledge gained through the process of scientific investigation is based on -
Correct Answers -generalizations & conclusions drawn from specific observations and
experiments
generalizations & conclusions drawn from specific observations and experiments is
known as - Correct Answers -inductive reasoning
any info gathered through observations & experiments is known as - Correct Answers -
inductive reasoning
any info gathered through inductive reasoning has --- - Correct Answers -a level of
uncertainty
we must rely on observations of --- - Correct Answers -samples
Scientific "facts" are always regarded with a certain level of --- - Correct Answers -
skepticism rather than the absolute truth
New Knowledge is actually an accumulation of -- - Correct Answers -evidence in
support of hypotheses
when we accept a hypothesis as "true" we do so on --- - Correct Answers -a conditional
basis, recognizing that some future technology, experiment, or other info may falsify it
When we prove a hypothesis false, we say that we --- it - Correct Answers -falsify or
refute
Scientists avoid saying that an investigation ---- - Correct Answers -proves a hypothesis
true, recognizing the level of uncertainty involved in inductive reasoning
