Biology
The nitrogen fixing bacteria present in the root nodules of leguminous plant is

Rhizobium
Salmonella
Pseudomonas
Clostridium

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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
Most children "outgrow" symptoms of ADHD
Boys are more likely to be diagnosed with ADHD than girls
About 20 percent of school-age children are diagnosed with ADHD

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