Which of the following is a purpose of rules in sports and games?

Yuan is a firefighter who provides basic first aid at accident scenes. yuan is an emergency medical

When you have proper posture, your back is arched. a. true b. false

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.