Edexcel IGCSE Biology 复习笔记 4.2.1 Trophic Levels & Food Chains
Edexcel IGCSE Biology 复习笔记 4.2.1 Trophic Levels & Food Chains Trophic Levels & Food Chains Trophic levels Trophic levels are used to describe the feeding relationships between or...
Edexcel IGCSE Biology 复习笔记 4.1.4 Abiotic & Biotic Factors
Edexcel IGCSE Biology 复习笔记 4.1.4 Abiotic & Biotic Factors Abiotic & Biotic Factors In Biology, ‘abiotic’ means non-living An abiotic factor is a non-living factor within an envir...
Edexcel IGCSE Biology 复习笔记 4.1.3 Biodiversity
Edexcel IGCSE Biology 复习笔记 4.1.3 Biodiversity Biodiversity Biodiversity is the range and variety of different species of organisms on Earth, or within an ecosystem It considers not only ...
IB DP Maths: AA HL复习笔记2.4.3 Modelling with Functions
What is a mathematical model? A mathematical model simplifies a real-world situation so it can be described using mathematics The model can then be used to make predictions Assumptions about the si...
IB DP Maths: AA HL复习笔记2.4.2 Solving Equations
How can I solve equations analytically where the unknown appears only once? These equations can be solved by rearranging For one-to-one functions you can just apply the inverse Addition and subtrac...
Edexcel IGCSE Biology 复习笔记 4.1.1 Key Terms in Ecology
Edexcel IGCSE Biology 复习笔记 4.1.1 Key Terms in Ecology Key Terms in Ecology There are several key terms that we use when referring to the various different components of an ecosystem and ...
Edexcel IGCSE Biology 复习笔记 3.2.8 Natural Selection
Edexcel IGCSE Biology 复习笔记 3.2.8 Natural Selection Darwin's Theory of Evolution by Natural Selection Charles Darwin proposed the theory of evolution by natural selection He came up with this th...
IB DP Maths: AA HL复习笔记2.4.1 Exponential & Logarithmic Functions
What is an exponential function? What are the key features of exponential graphs? The graphs have a y-intercept at (0, 1) The graphs do not have any roots For a > 1 this is the limiting value wh...
IB DP Maths: AA HL复习笔记2.3.4 Graphing Functions
How do I graph the function y = f(x)? The horizontal axis is used for the domain The vertical axis is used for the range You will be able to graph some functions by hand For some functions you will...
