Plant and animal kingdom is one of the most important chapters for Neet. Many multiple choice questions are asked from these parts. Preparing from charts and tables helps in memorizing. So make tables and charts of these kingdoms and their characteristics, examples. Examples are very important in the study of diversity in the living world. To score good in Neet, you must go through NCERT textbooks thoroughly as most of the questions are directly asked from it ans NCERTs cover the entire syllabus of Neet. After that you can opt for standard reference books like Truman' elementary biology Vol 1. Go through the link for study materials and most asked concepts. Prepare by rewriting the questions and answers. http://learn.careers360.com/biology/diversity-in-living-world-chapter/