This document provides an overview of key biology concepts covered in IGCSE Biology. It discusses the seven characteristics of living things: movement, respiration, sensitivity, growth, reproduction, excretion and nutrition. It also covers cell structure, including differences between plant and animal cells. Additionally, it summarizes the five kingdoms of classification (Bacteria, Protista, Fungi, Plants, Animals) and mechanisms of transport across cell membranes, such as diffusion, osmosis…
