Term | Definition |
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 |