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Biology Yr 11

Biodiversity

TermDefinition
Biodiversity the great variety of life that exists in our biosphere.
Biodiversity hotspot must have at least 1500 species of vascular plants found nowhere else in the world, and have lost at least 70% of natural vegetation.
Biosphere all the environments on earth that organisms inhabit: the combined sum of earth's ecosystems.
Ecosystem all of the organisms and abiotic factors and their interactions in a particular area at a particular time
Species A group of morphologically similar organisms that share a gene pool. members of the same _____ are able to interbreed under natural conditions to produce a viable and fertile offspring.
Gene pool the sum of all genes, including all of their different forms in a given population of one species. sometimes it is also used to refer to all of the genes in a species.
Gene a section of DNA in a chromosome that encodes an instruction for a specific protein. inherited by offspring, and come in different forms.
Importance of biodiversity 1 ecosystem processes are essential to survival. E.g. we depend on photosynthesis to convert light energy into chemical energy to provide oxygen.
Importance of biodiversity 2 Has cultural importance, as well as delivers clues in the changes of species over time. E.g. the land of Australia is important to Aboriginal and Torres Strait Islander people.
Importance of biodiversity 3 Contributes to the production of food, purified water, fibre products, fuels, climate control and pharmaceuticals.
Importance of biodiversity 4 attracts tourism and therefore contributes to the economy. E.g. the great barrier reef alone brought in $6.4 billion in 2015-16.
Morphology characterising a species based on it's structural form
Phylogenetic characterises a species based on it's broader set of genetics
Spatial scales the space being occupied - the distribution - of the individuals in a species.
Temporal scales refers to time. Studied to provide details about biodiversity in a certain area over a certain time period
Created by: Millie Cullender
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