Which occurs first following tissue injury?
a) pain is felt in the area of the injury
b) substances are released that produce vasodilation and increased permeability of capillary walls
c) injured tissue becomes reddened
d) phagocytes migrate to the area of injury

True or false? the usa has one of the safest food supplies in the world

The charge for office visit or procedure usually includes

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.