Eating good food is critical to good health because good food a. has ingredients that are high in nutrients. b. will never make you gain weight. c. is much cheaper than junk food. d. can completely prevent you from getting sick.

Which of the following processes within viral replication is the greatest source of genetic variation in rna virus populations? a) high mutation rate due to lack of proofreading of rna genome replication errors. b) transcription from the host cell rna polymerase introduces numerous mutations. c) capsid proteins from the host cell can replace the viral capsid. d) viral rna is translated by host cell ribosomes.