<span>Observations of organisms include </span>descriptions of the size, number, and arrangement of parts of the organism.
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<span>Exons from the same gene (like you said above) could be spliced in different ways to make different 'mRNAs'.</span>
The answer is methods of observation. Observational Methods in mental research involve the perception and portrayal of a subject's conduct. Scientists using the observational technique can apply fluctuating measures of control over the earth in which the perception happens.