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7 d variation and classification

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This document discusses variation and classification of organisms. It defines variation as differences within a species that can be due to inheritance, environment, or a combination of both. Organisms are classified into hierarchical groups, with examples given of classifying plants and animals at different levels from broad domains down to specific subclasses. The world contains millions of species that are organized through classification systems.

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23/09/15 Variation and ClassificationVariation and Classification
23/09/15 VariationVariation Variation means “differences within a species. For example, consider some of the people in your class: Ways in which they are the same Ways in which they are different
23/09/15 Environmental differencesEnvironmental differences Some of this variation is due to our parents, but some of it is due to our upbringing and the environment in which we live – this is called “Environmental variation”. Variation due to inheritance only Variation due to environment only Variation due to a bit of both
23/09/15 ClassificationClassification The world is populated by millions of different species of animals and plants…
23/09/15 Classifying organismsClassifying organisms All organisms are classified into groups. For example: Organism Plants Animals Vertebrates Invertebrates Reptiles FishBirds MammalsAmphibians
23/09/15 Classifying organismsClassifying organisms All organisms are classified into groups. For example: Organism Plants Animals Vertebrates Invertebrates Reptiles FishBirds MammalsAmphibians

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7 d variation and classification