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21 Cards in this Set
- Front
- Back
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Biodiversity |
The number of different ecosystems and habitats in an area. The number of species within the ecosystem and genetic variation within species |
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Species |
Group of organisms of common ancestry that intebreed to give raise to a fertile offspring |
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Morphology |
Outward appearance |
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Morphological species |
A group of organisms that share many physical features that distinguish them from other species |
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7 ways to define species |
7 |
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Biospecies |
A group of organisms that intebreed to give raise to a fertile offspring and are reproductivley isolated from other species If they do breed with other species any offspring are usually sterile Not good Some produce as Some extinct Hard to check fertility |
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Taxonomy diversity |
The number of species in an area |
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Locus |
The position a gene occupies on a chromosomes |
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Allozymes |
A different form if an enzyme with different primary structure |
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Assessing genetic diversity |
The proportion of gene loci the have 2 or more alleles ( proportion that show genetic polymorphism) The proportion of the population that are heterozygous The number of different alleles ( allele richness) |
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Genetic polymorphism |
The existence of different alleles of a gene |
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Polymorphic locus |
One where the most common allele has a frequency less than 95 per cent or less than 99per cent |
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Monomorphic |
Gene loci with no alleles |
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Electrophoresis |
Technique to similar to chromatography to separate allozymes |
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Biome |
Region in the world that has a dominant type of vegetation that is associated with the climate |
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Ecosystem |
Area that support communities of organisms that interact with each other and surrounding |
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Habitat |
A place where a species lives Provide resources |
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Niche |
Role of an organisms/species in an ecosystem |
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Quadrat |
Species frequency/density Percentage cover |
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Beating tree |
Large white sheet placed on the ground or held below a tree supported by struts. Tree shaken dislodge small animals. Collected with pooter |
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Apparatus |
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