Which of the following is an example of an implied limited contract? A physician in a medical clinic examines a new patient.

A physical therapist meets regularly with a patient and administers range of motion exercises.

A dental hygienist cleans a patient's teeth.

A physician at the scene provides emergency care to a car accident victim.

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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.