Which of the following is a reason that a drug may not receive fda approval?

Does indrect sunlight does not pose any danger to the skin

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.

per vehicle mile, motorcyclists are times more likely to die in a crash than passenger car occupants.