You are driving on a 2 lane highway with traffic moving in both directions the road is slippery and a vehicle in front of you wants to skid sideways block your lane in the right shoulder of the highway you should

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.

Which of the following is the best description of health protecion the answer is b the direct actions taken by health organizations to improve public health

Mechanical sissy washers are required to have