What is the main reason the food and drug administration (fda) was created

What parts of the cardiovascular system are affected with atrial fibrillation?

Does indrect sunlight does not pose any danger to the skin

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.