A Level Biology - 

Evolution, Ecology and Biodiversity

A Level Biology - Classification of Organisms: Phylogeny

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Classification - Phylogeny A3 Poster PDF for A Level Biology
A-Level biology classification - Phylogeny revision notes with knowledge check Q and A PDF

A Level Biology - Classification of Organisms: Taxonomy

 

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Classification of organisms - Taxonomy A-level biology Classification System A3 Poster PDF for A Level Biology

A Level Biology - Analysing the effect of Agriculture on Biodiversity using Spearman's Rank

 

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★ AQA A Level Biology Specification Reference: -  3.4.5 Species and taxonomy. A phylogenetic classification system attempts to arrange species into groups based on their evolutionary origins and relationships. It uses a hierarchy in which smaller groups are placed within larger groups, with no overlap between groups. Each group is called a taxon (plural taxa). One hierarchy comprises the taxa: domain, kingdom, phylum, class, order, family, genus and species. Each species is universally identified by a binomial consisting of the name of its genus and species, eg, Homo sapiens.

 

★ CIE A Level Biology Specification Reference: - 18.2 Classification: Organisms studied locally may be used to show how hierarchical classification systems are organised. a) describe the classification of species into the taxonomic hierarchy of domain, kingdom, phylum, class, order, family, genus and species.

 

★ Edexcel A Level Biology (Biology A – Salters-Nuffield) Specification Reference: - Topic 4: Biodiversity and Natural Resources. Investigation of taxonomic hierarchy. 4.6 i) Understand that classification is a means of organising the variety of life based on relationships between organisms using differences and similarities in phenotypes and in genotypes, and is built around the species concept. 

★ Edexcel A Level Biology (Biology B) Specification Reference: - Topic 3: Classification and Biodiversity. 3.1 Classification i Know that the classification system consists of a hierarchy of domain, kingdom, phylum, class, order, family, genus and species.

★ OCR A Level Biology (Biology A) Specification Reference: - 4.2.2 Classification and evolution. Classification is an attempt to impose a hierarchy on the complex and dynamic variety of life on Earth. Learners should be able to demonstrate and apply their knowledge and understanding of: (a) the biological classification of species. To include the taxonomic hierarchy of kingdom, phylum, class, order, family, genus and species AND domain. (b) the binomial system of naming species and the advantage of such a system. d) the relationship between classification and phylogeny. Cladistics and phylogenetic definition of species.

★ OCR A Level Biology (Biology B) Specification Reference: - 3.1.3 The development of species: evolution and classification. Learners should be able to demonstrate and apply their knowledge and understanding of: (a) the concepts of biological classification and species. To include the taxonomic ranks in the hierarchy of classification (domain, kingdom, phylum, class, order, family, genus, species) AND an outline of the biological and phylogenetic species concepts AND an outline of the biological and phylogenetic species concepts. 

WJEC A Level Biology Specification Reference: - Continuity of Life. 1. All organisms are related through their evolutionary history. This topic covers biodiversity and classification. The variety of living organisms that exists today has evolved as a result of natural selection. Modern techniques have allowed more accurate classification to confirm evolutionary relationships. (a) the classification of organisms into groups based on their evolutionary relationships and that classification places organisms into discrete and hierarchical groups with other closely related species (b) the need for classification and its tentative nature.

★ AQA A Level Biology Specification Reference: -  3.4.5 Species and taxonomy. Two organisms belong to the same species if they are able to produce fertile offspring. Courtship behaviour as a necessary precursor to successful mating. The role of courtship in species recognition. A phylogenetic classification system attempts to arrange species into groups based on their evolutionary origins and relationships. It uses a hierarchy in which smaller groups are placed within larger groups, with no overlap between groups. Each group is called a taxon (plural taxa). One hierarchy comprises the taxa: domain, kingdom, phylum, class, order, family, genus and species. Each species is universally identified by a binomial consisting of the name of its genus and species, eg, Homo sapiens.

 

★ CIE A Level Biology Specification Reference: - 18.2 Classification: Organisms studied locally may be used to show how hierarchical classification systems are organised. a) describe the classification of species into the taxonomic hierarchy of domain, kingdom, phylum, class, order, family, genus and species.

 

★ Edexcel A Level Biology (Biology A – Salters-Nuffield) Specification Reference: - Topic 4: Biodiversity and Natural Resources. Investigation of taxonomic hierarchy. 4.6 i) Understand that classification is a means of organising the variety of life based on relationships between organisms using differences and similarities in phenotypes and in genotypes, and is built around the species concept. ii) Understand the process and importance of critical evaluation of new data by the scientific community, which leads to new taxonomic groupings. 

★ Edexcel A Level Biology (Biology B) Specification Reference: - Topic 3: Classification and Biodiversity. 3.1 Classification i Know that the classification system consists of a hierarchy of domain, kingdom, phylum, class, order, family, genus and species.

★ OCR A Level Biology (Biology A) Specification Reference: - 4.2.2 Classification and evolution. Classification is an attempt to impose a hierarchy on the complex and dynamic variety of life on Earth. Learners should be able to demonstrate and apply their knowledge and understanding of: (a) the biological classification of species. To include the taxonomic hierarchy of kingdom, phylum, class, order, family, genus and species AND domain. (b) the binomial system of naming species and the advantage of such a system.

★ OCR A Level Biology (Biology B) Specification Reference: - 3.1.3 The development of species: evolution and classification. Learners should be able to demonstrate and apply their knowledge and understanding of: (a) the concepts of biological classification and species. To include the taxonomic ranks in the hierarchy of classification (domain, kingdom, phylum, class, order, family, genus, species) AND an outline of the biological and phylogenetic species concepts.

WJEC A Level Biology Specification Reference: - Continuity of Life. 1. All organisms are related through their evolutionary history. This topic covers biodiversity and classification. The variety of living organisms that exists today has evolved as a result of natural selection. Modern techniques have allowed more accurate classification to confirm evolutionary relationships. (a) the classification of organisms into groups based on their evolutionary relationships and that classification places organisms into discrete and hierarchical groups with other closely related species (b) the need for classification and its tentative nature.

★ AQA A Level Biology Specification Reference: -  3.4.6 Biodiversity within a community. Biodiversity can relate to a range of habitats, from a small local habitat to the Earth. Species richness is a measure of the number of different species in a community. An index of diversity describes the relationship between the number of species in a community and the number of individuals in each species. Calculation of an index of diversity (d). (use of Spearman's Rank).

 

★ CIE A Level Biology Specification Reference: - 18.1 Biodiversity. Biodiversity is much more than a list of all the species in a particular area. e) use Spearman’s rank correlation and Pearson’s linear correlation to analyse the relationships between the distribution and abundance of species and abiotic or biotic factors (the formula for these correlations will be provided) f) use Simpson’s Index of Diversity to calculate the biodiversity of a habitat and state the significance of different values of D.

 

★ Edexcel A Level Biology (Biology A – Salters-Nuffield) Specification Reference: - Topic 4: Biodiversity and Natural Resources. iii) Understand how biodiversity can be compared in different habitats using a formula to calculate an index of diversity (D).

★ Edexcel A Level Biology (Biology B) Specification Reference: -  Topic 10: Ecosystems. Understanding principles of sampling, including use of a formula to calculate an index of diversity; Spearman’s rank, correlation coefficient; Be able to use statistical tests to analyse data, including t-test and Spearman rank correlation coefficient.

★ OCR A Level Biology (Biology A) Specification Reference: - 4.2 Biodiversity: (c) how to measure species richness and species evenness in a habitat. (d) the use and interpretation of Simpson’s Index of Diversity (D) to calculate the biodiversity of a habitat. The interpretation of both high and low values of Simpson’s Index of Diversity (D). 4.2.2 Classification and evolution. (f) the different types of variation. Spearman’s rank correlation coefficient to consider the relationship of the data.

★ OCR A Level Biology (Biology B) Specification Reference: - Module 4: Energy, reproduction and populations . Select and use a statistical test: the Spearman’s rank correlation coefficient. 4.3.2 The impact of population increase: the ecological, economic and scientific importance of species biodiversity. To include aesthetic, medical and agricultural considerations and the use of statistical methods to assess species biodiversity (e.g. Simpson’s Diversity Index).

 

WJEC A Level Biology Specification Reference: - Continuity of Life. 1. All organisms are related through their evolutionary history. This topic covers biodiversity and classification. (h) biodiversity as the number and variety of organisms found within a specified geographic region (i) biodiversity varying spatially and over time and affected by many factors (j) biodiversity can be assessed in a habitat e.g. Simpson’s Diversity Index.

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