Little hairs that line the nasal cavity that trap microorganisms as the air passes through are known as
o
a.
cilia
ob. alveoli
oc. bronchioles
od. capillaries
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What is the function of reverse transcriptase in retroviruses? a) it uses viral rna as a template for dna synthesis. b) it converts host cell rna into viral dna. c) it translates viral rna into proteins. d) it uses viral rna as a template for making complementary rna strands.

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

Quick change oil company has a number of outlets in the metro politian seattle area. the number of daily oil changes oak street outlet in the past 20 days are