To best prepare you for SVT 3rd class, it is important to easily and at any time during the best 3rd SVT. This free app is a dynamic library supplied by the best French educational websites specialize in during SVT 3rd level. The courses on the following themes are present in our application: - Micro-organisms in our environment - Contamination - Infection - Immunology - All alike and all different - The support of the hereditary information - genes to chromosomes - The origin of the diversity