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Health and cardio respiratory fitness occurs when the heart is working, at minimum, 50 percent of heart rate reserve. true or false

Aclient, prescribed dextroamphetamine for attention deficit hyperactivity disorder (adhd), has developed a common adverse effect of the medication since beginning therapy. which initial intervention should the client be encouraged to implement? a. increase fiber intake. b. take an over-the-counter (otc) laxative daily. c. take metronidazole. d. take diphenoxylate hydrochloride.

Which of the following processes within viral replication is the greatest source of genetic variation in rna virus populations? a) high mutation rate due to lack of proofreading of rna genome replication errors. b) transcription from the host cell rna polymerase introduces numerous mutations. c) capsid proteins from the host cell can replace the viral capsid. d) viral rna is translated by host cell ribosomes.