Why aren't biodegradable bags found in grocery stores?

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.

per vehicle mile, motorcyclists are times more likely to die in a crash than passenger car occupants.

Why there must be community participation in primary health care