Edexcel IGCSE Maths 复习笔记 3.1.1 Sequences - Basics
Edexcel IGCSE Maths 复习笔记 3.1.1 Sequences - Basics What are sequences? A sequence is an order set of (usually) numbers Each number in a sequence is called a term The location of a term within a ...
AQA A Level Biology复习笔记3.2.3 Looking at the Gas Exchange under the Microscope
Apparatus & Techniques: Using an Optical Microscope Many biological structures are too small to be seen by the naked eye Optical microscopes are an invaluable tool for scientists as they...
Edexcel IGCSE Maths 复习笔记 2.17.2 Inequalities on Graphs - Interpreting
Edexcel IGCSE Maths 复习笔记 2.17.2 Inequalities on Graphs - Interpreting How do we interpret inequalities on a graph? First, see Inequalities and Straight Line Graphs Once you do… Write down...
Edexcel IGCSE Maths 复习笔记 2.17.1 Inequalities on Graphs - Drawing
Edexcel IGCSE Maths 复习笔记 2.17.1 Inequalities on Graphs - Drawing How do we draw inequalities on a graph? First, see Straight Line Graphs and Linear Inequalities Once you do… DRAW the line...
Edexcel IGCSE Maths 复习笔记 2.16.2 Solving Inequalities - Quadratic
Edexcel IGCSE Maths 复习笔记 2.16.2 Solving Inequalities - Quadratic What is a quadratic inequality? An Inequality tells you that one expression is greater than (“>”) or less than (“<”) anoth...
Edexcel IGCSE Maths 复习笔记 2.16.1 Solving Inequalities - Linear
Edexcel IGCSE Maths 复习笔记 2.16.1 Solving Inequalities - Linear What is a linear inequality? An Inequality tells you that one expression is greater than (“>”) or less than (“<”) another “⩾”...
AQA A Level Biology复习笔记3.2.2 Dissecting the Gas Exchange System
Apparatus & Techniques: Dissection Dissections are a vital part of scientific research They allow for the internal structures of organs to be examined so that theories can be made about ...
AQA A Level Biology复习笔记3.1.6 Gas Exchange vs Water Loss
Compromises between Gas Exchange & Water Loss The exchange of gases from the atmosphere is essential for the survival of organisms Oxygen is required for respiration Carbon dioxide is re...
AQA A Level Biology复习笔记3.1.5 Adaptations of Gas Exchange Surfaces
Adaptations of Gas Exchange Surfaces Effective exchange surfaces in organisms have: A large surface area Short diffusion distance Concentration gradient (maintained) Across the Body S...
