Larson is looking to buy equipment that will provide a full body workout while still being portable enough to bring with him on vacation. He should buy (5 points) Select one:
a. a medicine ball
b. exercise tubing
c. free weights
d. a stair climber

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

Which sti is a common cause of cancer?