1. A type of propagation which refers to a part of a plant that is cut and propagated. a. seeds b. runners c. marcotting d. cutting 2. is the process of removing a ring of the bark on a large branch organs of the plant. a. marcotting b. budding c. grafting d. cutting 3. Why do grafting and budding considered the most important means of plant propagation? a grafting and budding can be done in less than a minute. b. grafting and budding can be done without water. c. grafting and budding are the easiest ways to use. d. grafting and budding can propagate plants that can't be propagated by air layering 4. Which of the following elements in planting trees focuses on the biological function of the trees?​