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Key words

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
Variation   Differences  
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Continuous variation   Changes that are gradual and are measured on a scale eg. length  
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Discontinuous variation   Changes that are in set groups eg. shoe size  
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Habitat   Place where an organism lives  
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Hybrid   Infertile offspring of parents of two different species  
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Species   Organisms that can reproduce to produce fertile offspring  
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Adaptation   Features that help an organism survive  
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Community   All the organisms in a habitat  
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Population   All the organisms of a single species  
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Environment   The condition in a habitat caused by physical environmental factors  
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Inherited variation   Variations passed on to offspring from parents  
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Abiotic factors   Physical environmental factors eg. light  
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Biotic factors   Biological environmental factors (other organisms)  
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Bulb   Plant organ in the ground that spouts leaves at certain times  
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Deciduous   Plants that lose their leaves in the winter  
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Evergreen   Plants that don’t lose their leaves in the winter  
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Hibernation   When animals sleep during the winter  
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Migration   When animals move depending on the seasons  
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Nocturnal   Organisms that are active at night  
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Carnivore   An animal that only eats other animals  
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Competition   When two organisms are using the same resource  
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Consumer   An organism that eats another  
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Food chain   Diagram showing a single linear feeding relationship  
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Food web   Diagram showing all feeding relationships  
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Herbivore   Organism that only eats plants  
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Interdependence   Species that depend on each other  
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Omnivore   Animal that eats both plants and animals  
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Predator   Animal that catches and eats other animals  
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Prey   Animal that is eaten by a predator  
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Producer   An organism that makes its own food  
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Pest   An organisms that damages resources humans value  
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Pesticide   A chemical substance that kills pests  
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Pyramid of numbers   Diagram showing numbers according to tropic levels  
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Tropic level   Numerical position in a food chain starting with producers  
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