AQA A Level Biology復習筆記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復習筆記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...
AQA A Level Biology復習筆記3.1.4 SA:V Ratio & Metabolic Rate
The Relationship between Surface Area: Volume Ratio & Metabolic Rate The metabolic rate of an organism is the amount of energy expended by that organism within a given period of time The...
高考陸續(xù)放榜，高考后如何選擇留學國家？
近日，各地將陸續(xù)開通2022年高考成績的查詢通道，同學們在6月23-26日陸續(xù)都可以查到自己的高考分數(shù)啦！目前，江西、云南、內蒙古、寧夏、吉林、甘肅等地高考分數(shù)線已出爐： 圖源：人民網(wǎng)微博 分數(shù)出來之后，便是...
Edexcel IGCSE Maths 復習筆記 2.14.1 Quadratic Formula
Edexcel IGCSE Maths 復習筆記 2.14.1 Quadratic Formula What is a quadratic equation? A quadratic equation looks like (or can/should be made to look like) this:ax2?+ bx + c = 0 (as long as a ≠ 0) &nb...
AQA A Level Biology復習筆記3.1.3 Adaptation to Facilitate Exchange
Adaptations In Large Organisms to Facilitate Exchange Single-celled organisms have a high SA:V ratio which allows for the exchange of substances to occur via simple diffusion The large surfa...
AQA A Level Biology復習筆記3.1.2 Agar Blocks Practical
Practical Skill: Agar Blocks The effect of changing surface area to volume ratio on diffusion can be investigated by timing the diffusion of ions through cubes of agar of different sizes Met...
Edexcel IGCSE Maths 復習筆記 2.13.1 Linear Simultaneous Equations
Edexcel IGCSE Maths 復習筆記 2.13.1 Linear Simultaneous Equations What are linear simultaneous equations? When there are two unknowns (say x?and?y) in a problem, we need two equations to be able to...
AQA A Level Biology復習筆記2.6.7 ELISA
ELISA Each clone of plasma cells produces only?one type?of antibody These are known as?monoclonal antibodies Monoclonal antibodies can be used in?medical diagnoses They can be used in...
上海21所國際學校最新名單公布！
6月底，上海國際學校大規(guī)模招生已經(jīng)告一個段落，接下來部分學校還會有招生場次和招生名額，如果對某所學校感興趣，可以及時關注學校的官網(wǎng)消息。 1.又有4所學校加入“兩條腿走路”隊伍！ 前不久，上海高中招生名單...
Edexcel IGCSE Maths 復習筆記 2.12.1 Direct & Inverse Proportion
Edexcel IGCSE Maths 復習筆記 2.12.1 Direct & Inverse Proportion What is proportion? Proportion?is a way of talking about how two?variables?are related to each other Direct?proportion: as one va...
Edexcel IGCSE Maths 復習筆記 2.11.2 Solving Linear Equations
Edexcel IGCSE Maths 復習筆記 2.11.2 Solving Linear Equations Solving equations… … is just like rearranging formula so we’ll use exactly the same method … GROF GROBLET FIND ANSWER! This is a mnemoni...
