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</p>
<p>Lower level science courses tend to scare away the less serious students. Because of the sequenced prerequisite nature of science courses, the introductory ones automatically have a “weeding” effect.</p>
<p>
</p>
<p>Lower level science courses tend to scare away the less serious students. Because of the sequenced prerequisite nature of science courses, the introductory ones automatically have a “weeding” effect.</p>