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7D Ecosystem

Key words

TermDefinition
Variation Differences
Continuous variation Changes that are gradual and are measured on a scale eg. length
Discontinuous variation Changes that are in set groups eg. shoe size
Habitat Place where an organism lives
Hybrid Infertile offspring of parents of two different species
Species Organisms that can reproduce to produce fertile offspring
Adaptation Features that help an organism survive
Community All the organisms in a habitat
Population All the organisms of a single species
Environment The condition in a habitat caused by physical environmental factors
Inherited variation Variations passed on to offspring from parents
Abiotic factors Physical environmental factors eg. light
Biotic factors Biological environmental factors (other organisms)
Bulb Plant organ in the ground that spouts leaves at certain times
Deciduous Plants that lose their leaves in the winter
Evergreen Plants that don’t lose their leaves in the winter
Hibernation When animals sleep during the winter
Migration When animals move depending on the seasons
Nocturnal Organisms that are active at night
Carnivore An animal that only eats other animals
Competition When two organisms are using the same resource
Consumer An organism that eats another
Food chain Diagram showing a single linear feeding relationship
Food web Diagram showing all feeding relationships
Herbivore Organism that only eats plants
Interdependence Species that depend on each other
Omnivore Animal that eats both plants and animals
Predator Animal that catches and eats other animals
Prey Animal that is eaten by a predator
Producer An organism that makes its own food
Pest An organisms that damages resources humans value
Pesticide A chemical substance that kills pests
Pyramid of numbers Diagram showing numbers according to tropic levels
Tropic level Numerical position in a food chain starting with producers
Created by: andrewweng0406
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