Term
[image] Section 1.1A Intro to Biology Control Group
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Definition
Section 1.1A Intro to Biology In an experiment, it is the group closely resembling the experimental group in many demographic variables but not receiving the factor being tested and thereby serving as a comparison group when results are evaluated. |
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Term
[image] Section 1.1A Intro to Biology Dependent Variable
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Definition
Section 1.1A Intro to Biology It is the event studied in an experiment and it is expected to change when the independent variable is changed. |
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Term
[image] Section 1.1A Intro to Biology Experiment
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Definition
Section 1.1A Intro to Biology It is the scientific approach to testing a hypothesis. |
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Term
[image] Section 1.1A Intro to Biology Independent Variable
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Definition
Section 1.1A Intro to Biology It is the manipulated variable in an experiment; its presence determines the change in the dependent variable. |
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Term
[image] Section 1.1A Intro to Biology
Hypothesis
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Definition
Section 1.1A Intro to Biology A tentative explanation or educated guess about a problem. |
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Term
[image] Section 1.1A Intro to Biology Experimental Group
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Definition
Section 1.1A Intro to Biology The group of subjects that are exposed to the variable in a control experiment. |
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Term
[image] Section 1.1A Intro to Biology Control
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Definition
Section 1.1A Intro to Biology A standard against which results of an experiment are compared to. |
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Term
[image] Section 1.1A Intro to Biology Procedure
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Definition
Section 1.1A Intro to Biology A series of steps taken to carry out an experiment. |
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Term
[image] Section 1.1A Intro to Biology Reliability
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Definition
Section 1.1A Intro to Biology Yielding the same or compatible results in different experimental trials |
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Term
[image] Section 1.1A Intro to Biology Sample size
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Definition
Section 1.1A Intro to Biology A concept in probability theory which considers all possible outcomes of an experiment, game, and so on, as points in a space. |
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Term
[image] Section 1.1A Intro to Biology Scientific Method
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Definition
Section 1.1A Intro to Biology A methodical approach to designing and conducting an experiment |
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Term
[image] Section 1.1A Intro to Biology Theory
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Definition
Section 1.1A Intro to Biology A major hypothesis that is accepted by the scientific community because it has repeatedly survived several tests. |
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Term
[image] Section 1.1A Intro to Biology Validity
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Definition
Section 1.1A Intro to Biology Correctly inferred or deduced from a premise |
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Term
[image] Section 1.1A Intro to Biology Homeostasis
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Definition
Section 1.1A Intro to Biology It is the maintenance of normal internal conditions by means of self-regulatory mechanisms. |
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Term
[image] Section 1.1A Intro to Biology The Negative Feedback Loop:
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Definition
Section 1.1A Intro to Biology homeostasis stimulus sensor/receptor control/regulator centre effector
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Term
[image] Section 1.1A Intro to Biology Stimulus
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Definition
Section 1.1A Intro to Biology It is a change from normal conditions. |
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Term
[image] Section 1.1A Intro to Biology Self-regulatory mechanisms
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Definition
Section 1.1A Intro to Biology They work by negative feedback; Homeostasis occurs through these means. |
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Term
[image] Section 1.1A Intro to Biology Positive feedback
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Definition
Section 1.1A Intro to Biology Causes an ever lasting change in the same direction. It is only used in situations that occur intermittently. |
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Term
[image] Section 1.1A Intro to Biology Negative feedback
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Definition
Section 1.1A Intro to Biology Causes a reduction of output of a system |
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