| A | B |
| gamete | a reproductive cell (eg. an egg or sperm) |
| meiosis | the process of duplication and division of genetic material which leads to a new gamete |
| chromosome | strands of DNA found in cells |
| artificial selection | the technique of breeding desirable traits of plants or animals together to form a new plant or animal which will display these traits |
| genetic engineering | artificially placing genes from one organism into another organism |
| biological diversity | the number and variety of organisms in an area |
| ecosystem | all the interacting parts of a biological community and its environment |
| variation | differences in characteristics of organisms due to genetic and environmental factors. |
| discrete variation | inherited traits that have a limited number of variations |
| continuous variation | traits that show a range of variations and possibilities |
| symbiosis | organisms of different species who live together in a long-lasting relationship |
| species | a group of organisms which share similar genetic and physical characteristics and are capable of reproduction |
| pesticide | a chemical used to control pests |
| environment | the area or condition in which an organism lives |
| trait | a characteristic |
| heritable trait | a genetic characteristic that can be passed from parent to offspring |
| non-heritable trait | a characteristic that cannot be passed from parent to offspring |
| niche | the characteristic activity of an organism in an ecosystem |
| adaptation | the modification of an organism or its parts that makes it easier for it to live in its environment |
| species at risk | species that are threatened, endangered and extirpated |
| target organism | the organism against which a treatment is directed |
| non-target organism | An organism which is affected by an interaction (for example, a pesticide application) for which it was not the intended recipient |