Many fruits contain specialized structures that are adaptations for The answer is D. aiding in seed dispersal. Maple trees have fruits with "Wings" that help the gale disperse the seeds. Some flowering plants grow fleshy fruit that benefits disperse their seeds. When animals eat the fruit, the seeds pass through an animal's digestive tract undamaged.
There are a lot of functions to the digestive system like absorbing nutrients, get rid of waste but the main function is to process organic molecules so they can enter cells.
