Which of the following is an important factor for continued economic growth? A. improved use of land B. maintaining the level of physical capital C. a decrease in entrepreneurship D. a smaller but more educated workforce

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.