9th Class Biology Notes is a free educational application for students of 9th class. The application contains notes, questions, and answers from the 9th class.

The app is designed in a simple and user-friendly way, so that even a student in the first stage of learning biology can quickly get the basic knowledge in this subject. 

The app contains notes from different topics in the 9th class, including but not limited to: biological systems, organismic structure, cells, tissues, organs, and ecosystems. The app has different topics divided into several sections so that the user can quickly get to the required topic.

The app has a series of questions and answers, which will help the user to remember the concepts in the best way. The user can choose the question and the answers and mark the ones that are correct.