If someone could please help me with these I would really appreciate it and thank you.

What type of medicine to people take if they are lactose intolerance

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.

By signing the patient’s ehr with the digital signature, the provider certifies that all data and information in the patient ehr is: