Importance of Water & Inorganic Ions to Plants Plant cells perform a variety of different functions In order to perform these functions efficiently, the plant requires water and inorganic ions ...
Plant Stems Xylem vessels The functions of xylem tissue in a plant are: Vascular tissue that transports dissolved minerals and water around the plant Structural support Their cell walls contain lig...
Plant Cell Structure Plant cells contain most of the organelles found in animal cells, along with a few extra organelles that are only found in plant cells Cell wall Cell walls are formed outside o...
Conservation of Biodiversity When species go extinct it leads to an overall decrease in biodiversity In recent times many species have already gone extinct, while others are endangered An endangere...
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...
