Biology
Which of the following is not true of colour blindness?

Red-green colour blindness is the most common type of colour blindness
Colour blind people learn to rely on shapes, patterns, and positions of signs and signals
A colour blind person cannot see any colours
For some people, it might be difficult to recognize colours of traffic lights and signs

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Biology
Which statement concerning the diagnosis of ADHD is true?

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
About 20 percent of school-age children are diagnosed with ADHD

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