Classification Taxonomy is the practice of biological classification The phylogenetic classification system enables us to arrange species into groups based on their evolutionary origins and evoluti...
Reproductive Isolation Organisms that belong to the same species share the same characteristics and are able to produce fertile offspring Reproductive isolation occurs when changes in the alleles a...
前段时间，CB官网发布一则重磅消息：2023-2024年将开设一个新的AP课程 —— AP Precalculus预备微积分，即微积分的前置课程，并计划于2024年加入到AP考试中。AP预备微积分难吗？刷题怎么刷？ AP Precalculus课程内...
Hardy-Weinberg Equation Hardy-Weinberg Principle The Hardy-Weinberg principle states that if certain conditions are met, the allele frequencies of a gene within a population will not change from on...
Natural Selection can lead to Adaptation & Evolution Variation exists within a species population Variation refers to the differences between individuals. It can be interspecific (between diffe...
Ecological Niches & Adaptations Niche The place where a species lives within an ecosystem is its habitat The role that a species plays within its habitat is known as its niche, including: The b...
Comparing Biodiversity Between Habitats Once the abundance of different species in an area has been recorded, the results can be used to calculate the species diversity for that area Species divers...
Measuring Biodiversity Within a Habitat The place where an organism lives is called its habitat Habitats can vary in size, with some being very large (e.g. grasslands) while others are very small (...
Biodiversity & Endemism Biodiversity can be thought of as a study of all the variation that exists within and between all forms of life Biodiversity looks at the range and variety of genes, spe...
