Biology
Most of the oxygen transported by the blood is

Dissolved in plasma
In ionic form as solute in plasma
Bound to hemoglobin
Dissolved in water

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Biology
Which statement concerning the diagnosis of ADHD is true?

About 20 percent of school-age children are diagnosed with ADHD
Most children "outgrow" symptoms of ADHD
Boys are more likely to be diagnosed with ADHD than girls
Racial minority status is a good predictor of being diagnosed with ADHD

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