Speciation, Isolation & Isolating Mechanisms Explained | A-Level Biology #BiologyKingUg #UACE

🧬 SPECIATION, ISOLATION & ISOLATING MECHANISMS | A-LEVEL BIOLOGY In this BiologyKingUg lesson, we explore how new species arise through SPECiation and how different forms of isolation prevent gene flow between populations. In this video, you will learn: 🔹 Meaning of a species and speciation 🔹 How reproductive isolation leads to speciation 🔹 Geographical isolation 🔹 Ecological/Habitat isolation 🔹 Temporal isolation 🔹 Behavioural isolation 🔹 Mechanical isolation 🔹 Gametic isolation 🔹 Hybrid inviability 🔹 Hybrid sterility 🔹 Hybrid breakdown 🔹 Prezygotic and postzygotic isolating mechanisms 🔹 How isolation reduces gene flow 🔹 How natural selection, mutation, genetic drift and selection can contribute to speciation 🔹 Examples of isolating mechanisms in organisms 🎓 This lesson is ideal for S.5, S.6, UACE and Advanced Level Biology students preparing for examinations. 📚 Subscribe to BiologyKingUg for clear Biology concepts, labelled diagrams, UACE-focused explanations and examination item analysis. #BiologyKingUg #Speciation #AlevelBiology #UACEBiology #Evolution