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Transpiration Explained The movement of water through a plants xylem is largely due to the evaporation of water vapour from the leaves and the cohesive and adhesive properties exhibited by w...
AQA A Level Biology复习笔记3.5.10 Required Practical: Dissecting Mass Transport Systems
Required Practical: Dissections 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 how the...
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Edexcel IGCSE Maths 复习笔记 3.11.2 Differentiation - Turning Points Remind me of the rule for differentiating powers If y = kxn then dy/dx = knxn-1 What is a turning point? Th...
AQA A Level Biology复习笔记3.5.9 Correlations & Causal Relationships - The Heart
Correlations & Causal Relationships - The Heart Correlation is an association or relationship between variables Causation occurs when one variable has an influence or is influenced by, a...
AQA A Level Biology复习笔记3.5.8 Interpreting Data on the Cardiovascular System
Interpreting Data Relating to the Cardiovascular System A cardiac cycle is the sequence of events that make up a single heartbeat It includes periods of heart muscle contraction and relaxati...
AQA A Level Biology复习笔记3.5.7 Capillaries & Tissue Fluid
Capillaries & Tissue Fluid Capillaries are another type of blood vessel present in the circulatory system They have thin walls which are “leaky”, allowing substances to leave the blood t...
AQA A Level Biology复习笔记3.5.6 Blood Vessels
Arteries, Arterioles & Veins The body contains several different types of blood vessel: Arteries: transport blood away from the heart (usually at high pressure) Veins: transport blood to...
AQA A Level Biology复习笔记3.5.5 Investigating Heart Rate
Apparatus & Techniques: Investing Factors Affecting Heart Rate There are a wide range of factors that influence the heart rate of an organism Experiments can be designed to investigate t...
Edexcel IGCSE Maths 复习笔记 3.11.1 Differentiation - Basics
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如何提高A-Level经济学写作？A-Level经济学写作课程来啦！
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