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15 Cards in this Set
- Front
- Back
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What is the index of diversity |
N(N-1)/ sum n(n-1) |
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Abiotic factors |
Non-living components that influences or affects an ecosystem and the organisms within it |
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Population |
The summation of all the organisms of the same species which live in a defined geographical area |
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Biotic factors |
Living components of an ecosystem. They are sorted into 3 groups autorophs, heterotrophs and decomposers |
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Community |
All the populations of different species in a habitat that interact with eachother |
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Ecosystem |
A community of living organisms in conjunction with the abiotic components of their environment, interacting as a system |
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Genetic diversity |
Number of different alleles of a gene in a population |
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Genome sequencing |
The mapping of the entire base sequence of an organisms dna |
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Immunological comparisons |
Similar proteins bind to the same antibodies, similar genetic code |
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Standard deviation |
How much the values vary from the mean |
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Equation of standard deviation |
Square root Sum x(x-mean)2/ n-1 X- a value n- total number or values |
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Ways to increase farming yeild |
Cutting down hedgerows Use of pesticides Clearing woodland Monocultural farming Use of herbicides |
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Supporting biodiversity |
Conservation areas Protection laws Breeding endangered animals |
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Null hypothesis |
No correlation between two data sets, use spearman’s rank to accept or decline null hypothesis Rs< critical- accept Rs> critical- reject |
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Spearman’s rank correlation |
Rs= 1- 6x sum d2/ n(n2-1) |
