Which is an example of a barrier to exercise?

Compare contrast to curl up and arm hang tags and explain why different test cannot be used interchangeably

What is the most common blood type in the u.s.?

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.