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Is the amount of variation that exists between different individuals within different populations of a species
Is the number of organisms within each of the different species and total number of organisms in a place
Is the range of different habitats per unit area in a particular ecosystem or biome
Therefore to conserve the maximum amount of genetic diversity, different populations of a species need to be conserved
Food sources
we eat other species eg. plants and animals
preserve old varieties for the future
pest and diseases can wipe out non- resistant strains
breeders are only 1 step ahead of diseases & require wild strains from which they may find resistant genes
Natural Products
many medicines, fertilizers & pesticides are derived from plants & animals
Guano is a fertilizer high in phosphate = seabird droppings
oil palms give us oil for anything eg. margarine, toiletries
eg, rubber (latex) from rubber trees
rope from hemp
cotton from cotton plants
Scientific & educational value
Biological control agents
Gene pools
Future potential for more uses
Human health
vacations in areas of outstanding natural beauty & national parks
brings extra finance to an area & provides employment
eg. hiking, scuba diving
Ecotourism
subject of aesthetic interest
Ethical / Intrinsic value
Biorights self - perpetuation