Drug addiction is a serious
problem that mainly effects only the addict?
True or False?

How can a person  best  reduce the risk of injuries on the road?  

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.

Explain what you know about the cause of mental illnesses.