To achieve cardiorespiratory fitness, the american college of sports medicine recommends that a person expend
a.) at least 300 calories per exercise session three days per week
b.) at least 200 calories per exercise session four days per week
c.) 15 minutes of exercise per day
d.) answers a and b

Which of the following statements describes the lysogenic cycle of lambda (λ) phage? a) after infection, the viral genes immediately turn the host cell into a lambda-producing factory, and the host cell then lyses.b) most of the prophage genes are activated by the product of a particular prophage gene.c) the phage genome replicates along with the host genome.d) the phage dna is copied and exits the cell as a phage.

Explain why hiv is a life-threatening sti.

Michelle is in an abusive marriage and is using the internet to locate community resources. to best protect her safety while she is on the internet, she should