Biology
Which of the following is true of osmosis?

All of these
Requires energy
It is a type of diffusion
Movement is against water's concentration gradient

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

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