Exercising, avoiding smoking, and eating a low-fat diet will maintain wellness when you are
a. a. young adult
b. middle adult
c. late adult
d. all of the above

Which of the following viruses would most likely have reverse transcriptase? a) an rna-based lytic virusb) an rna-based lysogenic virusc) a dna-based lytic virusd) a dna-based lysogenic virus