Gene Mutations A?gene mutation?is a change in the sequence of base pairs in a DNA molecule that may result in an altered polypeptide Mutations occur?continuously?and?spontaneously Errors in the DNA...
The Definition of a Community Species?do not exist by themselves in their own isolated environment, they interact with other species forming?communities A community can be defined as: Multiple popu...
ISEF 國際科學(xué)與工程大獎(jiǎng)賽（Regeneron ISEF）是全球最大規(guī)模、最高等級(jí)、也是唯一面向9-12年級(jí)（即初三至高三）中學(xué)生的科學(xué)學(xué)術(shù)活動(dòng)，每年在美國的不同城市舉行。 學(xué)術(shù)活動(dòng)學(xué)科包括了所有自然科學(xué)和部分社會(huì)科...
2022-2023年SAT/ACT標(biāo)化考試時(shí)間匯總！時(shí)間不等人，一定要提前做好準(zhǔn)備！ ACT考什么、怎么考？ 很多初次接觸ACT考試的學(xué)生和家長都不了解ACT具體考什么、怎么考。下面簡(jiǎn)單介紹一下考試。 ACT考試采取電腦考試的方...
Edexcel IGCSE Maths復(fù)習(xí)筆記 1.9.1 Compound Interest What is compound interest? Compound interest is where interest is paid on the interest from the year (or whatever time frame is being used) befor...
擇校期一到，許多家長便瀏覽國際化學(xué)校網(wǎng)站、公眾號(hào)、教育論壇，以獲悉學(xué)費(fèi)、課程、師資、位置、錄取情況……擇校展作為國際化學(xué)校和家長溝通的重要渠道，可近距離、更直接地家校了解。目前，南京民辦校已陸續(xù)發(fā)布...
What is a reverse percentage? A reverse percentage question is one where we are given?the value after a percentage increase or decrease?and asked to find the value before the change How to do rever...
Genetic Variation Phenotype variation The observable characteristics of an organism are its phenotype Phenotypic variation is the?difference in phenotypes?between organisms of the same?speci...
Edexcel IGCSE Maths復(fù)習(xí)筆記 1.7.2 Percentage Increases & Decreases How do I increase or decrease by a percentage? Identify “before” & “after” quantities Find percentage of “before” that we ...
