What happens to the pressure in your chest cavity when you inhale? a. air pressure remains the same

b. air pressure is reduced

c. air pressure is increased

d. air pressure changes

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.