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20 Cards in this Set
- Front
- Back
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What is an ecotone?
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The transition area between ecosystems.
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What is muskeg?
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soil above permafrost that is swampy or boggy in the summer.
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What is taxification?
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Classification of species.
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What are the two dominant biomes in Canada?
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Taiga and Grassland.
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What are the three zones in lakes & in what order?
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Litterol Zone, Limnetic Zone, Profundal Zone.
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What does oligotrophic mean?
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A lake that is deep and cold.
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What does eutrophic mean?
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A shallow and warmer lake.
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What are the three major types of kingdoms?
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Animalia, Plantae & Fungi.
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What are homologous features?
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features that are similar structures but different functions.
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What are analogous features?
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features that are similar in appearence but do not appear to have the same evolutionary origin.
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What are vestigial features?
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structures with no useful function.
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What is DNA?
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molecule that makes up genetic material.
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What is a gene?
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Segment of DNA that preforms a specific function.
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What is artificial selection?
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process of humans selecting and breeding individuals with desired traits.
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What was Lamark's theory on evolution?
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he believed that very simple species were being made by arising spontaneously from non-living matter.
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What is natural selection?
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Darwin's theory that thhe result of diferential reproductive success of individuals caused by variations in their inherited characteristics.
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What is classified as a mutation?
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a change in the DNA sequence in a chromosom.
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What is neutral mutation?
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mutation that has no effect on an organism.
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What is a harmful mutation?
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mutation that reduces an orginisms health.
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What is a beneficial mutation?
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Mutation that enhances organisms health?
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