B2A 0.0 / 5 ? BiologyClassificationGCSEOCR Created by: ellxeCreated on: 19-05-16 08:51 What is classification? Organising living organisms into groups 1 of 13 Why are classification systems important in science? They help us understand how organisms are related (evolutionary relationships) and how they interact with each other (ecological relationships) 2 of 13 What is natural classification? Based on evolutionary relationships and genetic similarites 3 of 13 What is artificial classification? Based on appearance. Used to identify organsims. 4 of 13 What is the biggest thing organisms are divided into? Kingdom 5 of 13 What is a genus? A group of closely related species 6 of 13 What is a species? A group of organisms that can interbreed to produce fertile offspring 7 of 13 What does DNA sequencing do? Allows us to see genetic differences between organisms, seeing new relationships 8 of 13 What is a evolutionary tree? Shows how closely related different species are to each other (like a family tree) 9 of 13 What 3 things make classification hard? Asexual reproduction, Hybrids, Evolution is continuous 10 of 13 What is the binomial system? A system for naming organisms. Its a two part system - first part genus, second part species (e.g. Homo Sapien) 11 of 13 What do similar species have? A common ancestor. 12 of 13 Do closely related species look similar and live in similar habitats? Sometimes, like whales and dolphins, but not always like llamas and camels 13 of 13
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