why do plant don't have digestive system like us?why do they dont need digestive system? Share with your friends Share 0 Jahirul Mazumder answered this Kindly refer the link below: https://www.meritnation.com/ask-answer/question/plants-do-not-have-a-digestive-system-why-is-it-not-necessar/nutrition-in-plants/2915633 0 View Full Answer Rock answered this because they not need to dighest thier food as they store their food in roots 0