Which of the following is not a common treatment for hypertension? angioplasty
medication to reduce blood pressure
reducing fat and sodium in the diet
losing weight
increasing exercise

Joe has been suffering from asthma since childhood. recently, a severe asthma attack struck, after which he has been finding it difficult to breathe normally. what can ease his condition?

Which of these is a controllable risk fator for disease

Why do rna viruses appear to have higher rates of mutation? a) rna nucleotides are more unstable than dna nucleotides.b) replication of their genomes does not involve proofreading.c) rna viruses can incorporate a variety of nonstandard bases.d) rna viruses are more sensitive to mutagens.