IB DP Biology: HL复习笔记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复习笔记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复习笔记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复习笔记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复习笔记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复习笔记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机考最新调整解读，SAT防作弊措施更严格
受新冠疫情影响，SAT考试迎来重大改革！此前College Board宣布SAT将迎来机考时代。去年11月，大学理事会在美国及其它国家的一些国际学校试点举行了SAT上机考试，80%的考生反映他们觉得机考比起笔考压力更小，组织...
IB DP Biology: HL复习笔记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复习笔记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...
加州大学伯克利分校2022年暑期书单，新生们入学前推荐阅读！
许多美国大学都会给学生推荐假期阅读书单，希望他们利用课余时间好好享受读书的乐趣。尤其是马上入学的大一新生，开学后一个活动就是跟大家一起讨论分析大学推荐的阅读。 今日，美国名校加州大学伯克利分校就在官...
全球TOP院校优势专业及IB、AP、A-Level成绩要求汇总！
作为院校考察申请学生水平的重要参考，不同学校对于IB、AP、A-Level分数有着不同的标准。今天就为大家盘点下全球TOP院校IB、AP、A-Level的详细要求。 图源：pexel.com 麻省理工学院 优势专业 建筑、化学、计算机...
美国驻上海总领事馆什么时候恢复面签？
美国驻上海总领事馆什么时候恢复面签？最新消息：美国驻上海总领事馆刚刚恢复签证预约！最新可约签证面谈的日期为8月1日。 由于上海疫情原因，4月9日美国驻华大使馆发布公告：由于新冠病例数量以及相关限制，美国...
