Explain the preparation of yam pottage

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.

What is one way that cold and flu viruses spread? a.by transfusing contaminated blood b.by inhaling contaminated droplets c.by eating contaminated meat d.by drinking contaminated water

If a doctor needs using a medical imaging machine, a might be called to assist the doctor.