CIE IGCSE Biology: 复习笔记：3.1.1 Diffusion
CIE IGCSE Biology: 复习笔记：3.1.1 Diffusion Diffusion Diffusion is the movement of molecules from a region of its higher concentration to a region of its lower concentration Molecules move down a ...
CIE IGCSE Biology: 复习笔记：3.1.2 Factors that Influence Diffusion
CIE IGCSE Biology: 复习笔记：3.1.2 Factors that Influence Diffusion Factors that Influence Diffusion Surface area to volume ratio The bigger a cell or structure is, the smaller its surface a...
CIE IGCSE Biology: 复习笔记：2.1.4 Converting Between Units: Extended
CIE IGCSE Biology: 复习笔记：2.1.4 Converting Between Units: Extended Converting Between Units: Extended Using millimetres and micrometres as units The table below shows how millimetres are related...
CIE IGCSE Biology: 复习笔记：2.1.3 Magnification Formula
CIE IGCSE Biology: 复习笔记：2.1.3 Magnification Formula Magnification Formula Calculating magnification and specimen size using millimetres as units Magnification is calculated using the following...
CIE IGCSE Biology: 复习笔记：2.1.2 Organisation of Cells
CIE IGCSE Biology: 复习笔记：2.1.2 Organisation of Cells Producing New Cells The cells in your body need to be able to divide to help your body grow and repair itself Cells grow and divide over and...
CIE IGCSE Biology: 复习笔记：2.1.1 Cell Structure
CIE IGCSE Biology: 复习笔记：2.1.1 Cell Structure Animal & Plant Cells Animals The main features of animals: They are multicellular Their cells contain a nucleus with a distinct membrane Their ...
CIE IGCSE Biology: 复习笔记：1.1.3 Concept & Uses of Classification Systems: Extended
CIE IGCSE Biology: 复习笔记：1.1.3 Concept & Uses of Classification Systems: Extended Reflecting Evolutionary Relationships: Extended Classification systems aim to reflect evolutionary relation...
CIE IGCSE Biology: 复习笔记：1.1.5 Features of Organisms: Extended
CIE IGCSE Biology: 复习笔记：1.1.5 Features of Organisms: Extended The Five Kingdoms: Extended The first division of living things in the classification system is to put them into one of five kingd...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：4.4.1 Alkenes
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：4.4.1 Alkenes The Alkenes All alkenes contain a double carbon bond, which is shown as two lines between two of the carbon atoms i.e. C=C All...
