Aperson should power walk for minutes a day in order to benefit from this activity.

a. 30-45
b. 25-30
c. 20-25
d.15-20

Microbes in the gut ferment fiber and complex carbohydrates and form vitamins, short chain fatty acids and

Describe three ways in which technology has treat the flu

Which of the following represents a difference between viruses and viroids? a) viruses infect many types of cells, whereas viroids infect only prokaryotic cells.b) viruses have capsids composed of protein, whereas viroids have no capsids.c) viruses have genomes composed of rna, whereas viroids have genomes composed of dna.d) viruses cannot pass through plasmodesmata, whereas viroids can.