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Which of the following lines of evidence suggests that lungfishes evolved while Pangaea was intact?
Longitudinal Study
A research design that involves repeated observations of the same variables over short or long periods of time.
American Psychological Association
The leading scientific and professional organization representing psychology in the United States, dedicated to advancing the discipline and promoting psychological science.
Code of Ethics
A guide of principles designed to help professionals conduct business honestly and with integrity.
Descriptive Statistics
Statistical methods that summarize and organize the characteristics of a set of data.
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