Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 Abiotic & Biotic Factors In Biology, ‘a(chǎn)biotic’ means non-living An?abiotic?factor is a?non-living?factor within an environment such as temperature...
Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 4.1.2 Practical: Investigating Population Size Practical: Investigating Population Size Ecology?is the branch of biology that studies: T...
Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 4.1.1 Key Terms in Ecology Key Terms in Ecology There are several key terms that we use when referring to the various different components of a...
Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 3.2.7 Natural Selection Darwin's Theory of Evolution by Natural Selection Charles Darwin proposed the?theory of evolution by natural sel...
Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 3.2.6 Mutation Mutations Mutations are?rare,?random changes?that occur in the?sequence of DNA bases?in a gene or a chromosome Mutations occur?c...
Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 Types of Variation Types of Variation Variation is defined as?differences between individuals of the same species Variation can be divided into...
Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 3.2.4 Cell Division Mitosis Mitosis is defined as?nuclear division giving rise to genetically identical cells This type of cell division is use...
Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 3.2.3 Predicting Genetic Inheritance Family Pedigrees Family pedigree diagrams are usually used to trace the?pattern of inheritance?of a specif...
Shortest Distance between a Point & a Plane How do I find the shortest distance between a given point on a line and a plane? The shortest distance from any point on a line to a plane will alway...
