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  • Unit 17 - Q Biodiversity, classification and conservation
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Summary A Level Biology notes - Unit 17 Biodiversity, classification and conservation

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Unit 17 - Q Biodiversity, classification and conservation
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A Level Biology Notes: Unit 17 - Biodiversity, Classification, and Conservation Explore the rich tapestry of life on Earth with these detailed Level Biology notes on Unit 17! Ideal for students studying biodiversity, these notes cover essential concepts related to classification systems and conservation efforts. Understanding Biodiversity: Discover the significance of biodiversity, encompassing the variety of species, ecosystems, and genetic diversity. Learn why maintaining biodiversity is crucial for ecosystem stability and resilience. Classification Systems: Dive into the Linnaean system of classification, which organizes living organisms into hierarchical categories, including domain, kingdom, phylum, class, order, family, genus, and species. Explore the importance of taxonomy in understanding evolutionary relationships. Phylogenetics: Understand how phylogenetic trees illustrate evolutionary relationships among species. This section covers the use of DNA sequencing and molecular techniques in modern classification efforts. Conservation Strategies: Learn about the various approaches to conservation, including in-situ (on-site) and ex-situ (off-site) conservation methods. Examine case studies that highlight the importance of habitat preservation, endangered species protection, and biodiversity hotspots. Human Impact on Biodiversity: Explore how human activities, such as habitat destruction, pollution, and climate change, threaten biodiversity. Understand the importance of sustainable practices and the role of individuals and communities in conservation efforts. These notes are filled with clear explanations, engaging visuals, and real-world examples, making the complex topics of biodiversity, classification, and conservation accessible and interesting. Perfect for exam preparation or as a comprehensive study resource, they will equip you with the knowledge to understand and appreciate the importance of biodiversity on our planet!

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Chapter 18 Biodiversity Classification and Conservation




18.1 Classification



species a group of organisms with similar morphological and physiological feature
that are able to breed together and produce fertile offspring



morphological species concept grouping together organisms that share many

physical features that distinguish them from other speci



cological species concept a population of similar organisms living in the same area

at the same time ecological species


Binomial species naming system

Genus specific epithet trivial name




hierarchical
lassification

system




in

,3 domains


archaea prokaryotes Archaea has more in common with
bacteria prokaryotes Eukarya than Bacteria
entanga eukaryotes diverged later




Archaea

live in extreme environments
some produce methane can't survive
where there is 02
have unusual enzymes

, Bacteria




Eukaryotes




The three domains are each divided into Kingdoms


4 Kingdoms of the domain Eukarya
Protoctista

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