Index 1. Introduction 2. Creationism 3. Spontaneous Generation 4. Spallanzani And Needhad 5. Pauster 6. Panspermia 7. The Theory Oparin – Haldane 8. Conditions that allowed life 1. Introduction Since man had the ability to reason and spite, she was wondering how life arose, giving rise to one of the most complex and difficult ..