Biology
Oxyreductases, transferases, hydrolases, lyases, isomerases and ligases are all classes of

enzymes
proteins
vitamins
hormones

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Biology
Which statement concerning the diagnosis of ADHD is true?

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

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Biology
In test tube baby

Fertilization of ova takes place in test tube which development of embryo occur in uterus
Fertilization of ova and development takes place in test tube
Development of ova take place in test tube without fertilization
Fertilization takes place in uterus while development takes place in test tube

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