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20 Cards in this Set
- Front
- Back
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systematics
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reconstructing phylogeny, or evolutionary history
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taxonomic structre
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domain kingdom phylum class order family genus species
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who coined essentialism and what is it
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Aristototle, they all have their own essence( they vary in genetics)
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biological species concept
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species are groups of actually or potentially interbreeding natural populations which are rpreproductively isolated from other such groups
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problems of species concept
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asexual species, fossil species, geographical isolates, plants
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on which chromosome are most x linked diseases carried on? and which sex get them more easily
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the x chromosome; males they only have one x chromosome and need only to inherit one copy 3
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pleitropy
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one gene has multiple phenotypic effects
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aneuploidy
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having an irregular number of chromosomes
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nondisjunction
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unequal distribution of chromosomes during meiosis
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levels of hierarchy of ecology
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Biosphere
Ecosystem community population organism |
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interspecific interactions
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interactions between different species
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intraspecific interactions
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interactions amongst organisms of the same species
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batesian mimicry
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when a harmless species mimics a harmful one
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mullerian
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multiple harmful species look like each other
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commensalism type interactions
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where one organisms stands to benefit, but the other is not harmed
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parasitism
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one organism gains and the other is harmed
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detritivores
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organisms that feast off the remains of other organisms
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gene flow
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movement of alleles in and out of a population, through immigration and emigration
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founder effect
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when a subset of a population relocates and founds another population
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