Which are two major divisions of the peripheral nervous system?
central nervous system and autonomic
autonomic and somatic nervous systems
peripheral nervous system and somatic
somatic and central nervous system

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.