Which characteristic is associated with drug abuse

Whic disease reduces bone density and causes the bones to become brittle

True or false: determining the source and motive of an ad for a health product will you decide whether the ad is a reliable source of health information.

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.