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17 Cards in this Set
- Front
- Back
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Heritability
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the proportion of trait variation due to underlying genetic variation
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H2 =
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trait change per generation / past trait value
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population genetics - what is it and what does it tell us
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studies the change in genotypes throughout populations, a measure of the amount of evolution occuring
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rate of change
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a genotypes ability to make copies of itself
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usefulness of H-W
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compare to see the degree of evolution that is occuring
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genetic drift
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changes in allelic frequencies
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mutation
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changes in DNA
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importance of Ne
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shows the gene frequencies that are being pasted on which are not immediately apparent by studying the whole populations
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principle of allocation
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organisms will allocate energy to different life functions depending on the environment
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homeostasis
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a organism is at a relatively stable internal state under a much wider set of conditions
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life history trade-offs
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because resources are limiting, an organism must allocate its energy carefully
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intrinsic rate of increase
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the per capita rate of change in a population
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thermoregulation
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maintaing optimal body temperature through physiological and behavioral means
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poikilotherms
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body temp tracks the environments temo
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homeotherms
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body temp doesn't change
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ectotherms
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regulates body temp using external heat sources
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endotherms
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maintain constant temp using internal mechanisms
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