When it comes to safe patient handling, what does it take to perform this task ergonomically?

a.
having a second person assist

b.
manual lifting techniques

c.
use of mechanical lifting equipment

d.
correct posture

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.

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