IB DP Biology: HL復(fù)習(xí)筆記6.1.3 Absorption
Methods of Absorption Digestion breaks down food into?smaller, soluble molecules These products of digestion then pass from the?lumen?of the intestine into the?blood They pass through the microvill...
IB DP Biology: HL復(fù)習(xí)筆記6.1.2 Villi & Absorption
Villi: Increasing the Surface Area The?ileum?(the second section of the small intestine) is adapted for?absorption It is?very long It has a?highly folded surface? It has?millions of villi?(singular...
IB DP Biology: HL復(fù)習(xí)筆記6.1.1 Digestion
Introduction to Digestion The digestive system is an example of an?organ system?in which several organs work together to digest and absorb food Digestion is a process in which relatively?large, ins...
IB DP Biology: HL復(fù)習(xí)筆記5.2.7 Skills: Classification & Cladistics
Dichotomous Keys For anyone who doesn't specialise in studying a particular group of organisms, it can be very?difficult to identify, or ID, a species?when working in the field Correctly identifyin...
IB DP Biology: HL復(fù)習(xí)筆記5.2.6 Reclassification
Cladistics & Reclassification The development of?DNA sequencing technology?means that classification can now be carried out on the basis of?evolutionary relationship Organisms classified in thi...
IB DP Biology: HL復(fù)習(xí)筆記5.2.5 Cladistics
Clades The term?clade?can be defined as A group of organisms that have all descended from a common ancestor Cladistics?is the branch of science in which scientists put organisms into clades It invo...
IB DP Biology: HL復(fù)習(xí)筆記5.2.4 Animal Phyla Features
Animal Phyla Features Animals are?multicellular,?eukaryotic?organisms They are?heterotrophs?and most have a?nervous system?that enables responses to the surrounding environment There are over?30 an...
SAT機考最新調(diào)整解讀，SAT防作弊措施更嚴(yán)格
受新冠疫情影響，SAT考試迎來重大改革！此前College Board宣布SAT將迎來機考時代。去年11月，大學(xué)理事會在美國及其它國家的一些國際學(xué)校試點舉行了SAT上機考試，80%的考生反映他們覺得機考比起筆考壓力更小，組織...
IB DP Biology: HL復(fù)習(xí)筆記5.2.3 Plant Phyla Features
Plant Phyla Features All plants belong to the?plant kingdom Within the plant kingdom are several?phyla?(singular?phylum) Some plant phyla are small E.g. the Glaucophytes contain only 70 species and...
IB DP Biology: HL復(fù)習(xí)筆記5.2.2 Classifying Organisms
Examples of Classification Biological classification involves putting organisms into?groups, or?taxa?(singular?taxon) The taxa form a?hierarchy A?hierarchical system?is one in which?larger groups c...
加州大學(xué)伯克利分校2022年暑期書單，新生們?nèi)雽W(xué)前推薦閱讀！
許多美國大學(xué)都會給學(xué)生推薦假期閱讀書單，希望他們利用課余時間好好享受讀書的樂趣。尤其是馬上入學(xué)的大一新生，開學(xué)后一個活動就是跟大家一起討論分析大學(xué)推薦的閱讀。 今日，美國名校加州大學(xué)伯克利分校就在官...
全球TOP院校優(yōu)勢專業(yè)及IB、AP、A-Level成績要求匯總！
作為院?？疾焐暾垖W(xué)生水平的重要參考，不同學(xué)校對于IB、AP、A-Level分?jǐn)?shù)有著不同的標(biāo)準(zhǔn)。今天就為大家盤點下全球TOP院校IB、AP、A-Level的詳細(xì)要求。 圖源：pexel.com 麻省理工學(xué)院 優(yōu)勢專業(yè) 建筑、化學(xué)、計算機...
