What is an advantage of consuming natural foods instead of dietary supplements? '
a. excessive consumption of natural foods has no negative effects.
b. natural foods are lower in bad cholesterol and higher in good cholesterol.
c. natural foods contain substances that protect the body against diseases.

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.