If gonorrhea is a treatable infection, why do so many men experience severe damage and even infertility or joint infections as a result of leaving it untreated?

Scientists who study the anatomy of the systems in the human body focus their studies on

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.

Complete each statement about nutrition. a good strategy for meeting the nutrient needs of an infant is to . vitamin d during childhood is an important nutrient to .