Alex is planning to buy his first car and has a list of a few cars that are within his budget. he hopes to get a car that is dependable and safe. what is the most reliable factor on which to base his final decision about which car to buy?

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.