2. The hypothesis would be; Blackouts are caused by vasovagal reflex

(what happens when a needle needs to be inserted into the skin to draw blood).

3. The independent variable would be the vasovagal reflex.

4. The dependent variable would be the percentage of blackouts caused

by vasovagal reflex the independent variable.

Some common words found in the essay are:
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Approximate Word count = 290
Approximate Pages = 1 (250 words per page double spaced)