BIO 100 EXAM 1 QUESTIONS AND ANSWERS

BIO 100 EXAM 1 QUESTIONS AND
ANSWERS


Observation, Problems and Questions, Hypothesis, Observations and Experimentation,
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Data collection and analysis, Conclusions, Theories - ans-parts of the scientific method
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Observation - ans-"My Roommate said Biology 200 students smile during lab"
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Problems and Questions - rr rr rr


ans-"What is the most exciting class at Minnesota State Mankato?"
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Hypothesis - ans-"Bio 100 is the most exciting class at Minnesota State Mankato"
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Observations and Experiments - rr rr rr


ans-"All exiting Minnesota State Mankato seniors were given a survey asking them what
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class at Mankato the most exciting"
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Data Collection and Analysis -
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ans-"For the last 20 years surveys were collected from exiting seniors and it was found th
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at 99.9% of the seniors that that BIO was the most exciting class taken at Mankato"
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Conclusions - ans-"You will also find BIO very exciting" rr rr rr rr rr rr rr rr




Theories - ans- rr rr


an explanation for a natural phenomenon; it is as close to the truth as scientists can get a
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nd is accepted by a majority of scientists.
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Questioning - ans- rr rr


Occurs when you identify and state a problem or ask a question. Needs to be understand
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able, doable, and testable, falisifiable.
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Good Characteristics of Hypotheses - ans-
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An educated guess or a possible explanation for an observed set of facts that lends itself t
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o being tested. Must be testable through experiments, must be very specific, and can be
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written in several formats. rr rr rr




Scientific Theory - ans-A well- rr rr rr rr


substantiated explanation of some aspect of the natural world, based on a body of facts th
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at have been repeatedly confirmed through observation and experiment.
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, Observation - ans-The process of gathering information throughout the senses.
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Subject Expectation - ans-
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Form of reactivity that occurs in scientific experiments when a research subject expects a
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given result and therefore unconsciously affects the outcome
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Observer Bias - ans- rr rr rr


Occurs when the observers know the goals of the study or the hypotheses and allow this
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knowledge to influence their observations during the study.
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Double Blind Experiment - ans-
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Neither the participants nor the researchers know which participants belong to the control
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group, nor the test group.
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Random Assignment - ans- rr rr rr


Placement is an experimental technique for assigning subjects to different treatments
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Controlled Variable - ans-The quantities that a scientist wants to remain constant.
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Independent Variables - ans-The values you are manipulating and have control over
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Dependent Variable - ans- rr rr rr


What you measure in the experiment and what is affected during the experiment.
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Sample Size - ans-The number of observations in an assignment.
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Generalization - ans-A general statement obtained by inference. rr rr rr rr rr rr rr




Control Group - ans- rr rr rr


All groups are treated identically except one who does not have the independent variable
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manipulated.

Experimental Group - ans- rr rr rr


The group in an experiment that receives the variable being tested.
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Measurement Error - ans- rr rr rr


Difference between the actual value of a quantity and the value obtained by a measureme
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nt.

Death - ans-The absence of life.
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Movement
Breathing
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Brain Waves - ans-historical view of death
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