علوم الحياة والارض 3 اعدادي

Lessons of life and earth sciences, third year, preparatory, first session and second session

We offer you selected summaries from the lessons of life and earth sciences, the third year, preparatory, the first session and the second session. Respiratory and circulatory system, and the last lesson in the first session is urinary extrusion, which are lessons in the form of diagrams, graphs, pictures and documents in high quality and with easy explanation. This is in addition to protecting the digestive and respiratory systems.