The variable is the group that was given caffine, because thats what the doctors manipulated. They possibly altered the natural memory of the participants by giving them caffine. A more specific variable could be how much caffine each participant is given and what time are they given it.
Answer
Article 1, Section 9, Clause 8
Explanation:
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Answer:
B. Yes, because the sentence provides commentary that helps develop the paragraph’s explanation on how the Brontosaurus came to be misclassified.
Explanation:
