chloe has chronic renal failure. her kidneys do not properly filter metabolic wastes from her blood. without regular treatment, harmful wastes
would quickly build up in her body. chloe must go three times a week to a clinic to receive
, which is a procedure in which a
machine effectively replaces the function that her kidneys would perform if they were healthy.

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.