|bīˈäləjē|: the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution.
Biology is a very content-heavy science, but the IGCSE examiners tend to be quite lenient- the mark schemes provide about 10 points to cover a four mark answer! To score in biology, all it takes is a bit of hard work and memorization. The best way to study for this is to find a nice, quiet place free of distractions- and to make your studying interesting and memorable. Once you’ve memorized it once, it becomes a bit mundane to memorize it again- so for me I revise through different mediums, for example, blogging.
I take notes on biology and write down precisely what we need to know according to the syllabus, nothing more and nothing less. Of course, it gets extremely monotonous. I have a strong interest in neuroscience, so I do more research into that just as a pet project. You should do that too- cultivate your love and interest in one specific area of biology so that you don’t get bored of memorizing the same thing over and over again.
There are a lot more chapters to biology (I broke them down into sections that may not correspond exactly to the syllabus), but I assure you they are complete:
- Characteristics and Classification of Organisms + Dichotomous Keys
- Cell Structure and Organization, Magnification
- Movement: Diffusion, Osmosis, Active Transport; and Enzymes
- Coordination and Response
- Energy and Nutrient Transfer
- Human Influences on the Ecosystem