宾大/帝国理工/清北等10位大牛导师组团讲解备赛干货，赶紧扫码报名！
想要冲刺藤校G5 哪些国际赛事才是必选项？ 2022年AMC10/12 A卷+B卷最新解析 哪里能第一时间找到？ 各科学术活动讲座东一个西一个 哪里能一次性get所有？ 翰林国际学术活动节11月12日 即将正式开幕啦！ 10位大咖...
Edexcel A (SNAB) A Level Biology:复习笔记3.4.2 Stem Cells in Medicine
Stem Cells in Medicine As stem cells have the ability to differentiate into other specialised cell types, they are very valuable in medical research and treatments as they have the potential to rep...
Edexcel A (SNAB) A Level Biology:复习笔记3.4.1 Stem Cells
Stem Cells A stem cell is a cell that can divide (by mitosis) an unlimited number of times Each new cell (produced when a stem cell divides) has the potential to remain a stem cell or to develop in...
Edexcel A (SNAB) A Level Biology:复习笔记3.3.4 Meiosis: Source of Genetic Variation
Meiosis: Source of Genetic Variation Meiosis gives rise to cells that are genetically different from each other and is the type of cell division used to produce gametes (sex cells) During meiosis, ...
Edexcel A (SNAB) A Level Biology:复习笔记3.3.3 Genes & Linkage
Locations of Genes on a Chromosome Every chromosome consists of a long DNA molecule that contains several hundred or even thousands of different genes coding for different proteins A length of DNA ...
Edexcel A (SNAB) A Level Biology:复习笔记3.3.2 Fertilisation in Mammals
Fertilisation in Mammals During sexual intercourse, semen is ejaculated high up into the vagina of the female, near the cervix The sperm cells then follow a chemical trail released by the egg cell ...
2023年美国物理碗Physics Bowl考试安排已出炉，物理碗适合哪些学生？
在众多的国际学术活动中，理科类项目种类繁多，并且难度各异，针对不同学科方向、不同年级的学生都有与之匹配的学术活动。美国物理碗Physics Bowl，是比较热门的国际物理学术活动，参与活动，将锻炼逻辑思维能力...
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Mammalian Gametes Gametes Gametes are the sex cells of an organism For example, the sperm and egg (ovum) cells in humans Gametes fuse during fertilisation to form a zygote Fertilisation is the fusi...
Edexcel A (SNAB) A Level Biology:复习笔记3.2.3 Practical: Identifying Mitosis in Plant Cells
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Edexcel A (SNAB) A Level Biology:复习笔记3.2.2 Mitosis
The Stages of Mitosis Mitosis is the process of nuclear division by which two genetically identical daughter nuclei are produced that are also genetically identical to the parent cell nucleus (they...
Edexcel A (SNAB) A Level Biology:复习笔记3.2.1 The Cell Cycle
The Cell Cycle Mitosis is part of a precisely controlled process known as the cell cycle The cell cycle is the regulated sequence of events that occurs between one cell division and the next The ce...
Edexcel A (SNAB) A Level Biology:复习笔记3.1.7 Recognising Organelles
Recognising Organelles from Electron Microscope Images Electron microscopes can produce highly detailed images of animal and plant cells This is because they have a higher resolution, or resolving ...
