Sara is a 23 year old female. she is new to working out and would like to calculate her target heart rate so that she knows if she is getting the most benefit from her exercise. when she took her pulse for 15 seconds she got 20 beats.

calculate her target heart rate (following all steps) for 50% and 80% intensity.

question 14 options:

110-164

178.5-237.5

138.5-173.6

58.5-93.6

Will treating a viral infection with antibiotics affect the course of the infection? a) no; antibiotics work by inhibiting enzymes specific to bacteria. antibiotics have no effect on eukaryotic or virally encoded enzymes.b) no; antibiotics do not kill viruses because viruses do not have dna or rna.c) yes; antibiotics activate the immune system, and this decreases the severity of the infection. d) yes; antibiotics can prevent viral entry into the cell by binding to host-receptor proteins.