What has the American Heart Association established as a normal heart rate for adults in beats per minute, or BPM?
O A. 100-150 BPM
B. 30-70 BPM
C. 50-100 BPM
D. 70-100 BPM
O

Which of the following are examples of coordinate headings

What is the function of reverse transcriptase in retroviruses? a) it uses viral rna as a template for dna synthesis.b) it converts host cell rna into viral dna.c) it translates viral rna into proteins.d) it uses viral rna as a template for making complementary rna strands.

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.