B1 Topic 1 Revision 0.0 / 5 ? BiologyAdaptations of organisms to their environmentEvolution, extinction and natural selectionVariation and reproductionVariety of life and classificationGCSEEdexcel Created by: lucycattellCreated on: 16-04-15 12:27 What is a vertebrate? An animal that is in possession of a backbone e.g mammals. 1 of 8 What do invertebrates not have? A backbone. 2 of 8 What are the 5 kingdoms organisms are classified in? Plantae, fungi, animalia, protoctista and prokaryotes. 3 of 8 What is an 'adaptation'? A special feature or type of behaviour that make a living organism well-suited to its environment. 4 of 8 What does 'variation' mean? The differences between individuals of the same species. 5 of 8 Variation is due to two factors. State these factors. Genetic causes (inheritance) and environmental causes. 6 of 8 What two types can variation be grouped into? Continuous and discontinuous. 7 of 8 What was Charles Darwin's theory? The theory of evolution by natural selection. 8 of 8
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