Answer:
1) Beans will generally have fewer than 100 nodules per plant, soybeans will have several hundred per plant, and peanuts may have 1,000 or more nodules on a well-developed plant. Figure 2. Nodules from a legume cut open to show the reddish-pink color that indicates an active, healthy nodule.
2) both of them have roots that go deep inside the cup trying to get some food to live. They both got nodules but yeah
3) The beans take up like the whole cup and the radish just takes up the center of the cup. Less nodules than the bean plant.
