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Evolution L1
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- 11) What is evolutionary psychology? 2) What is the goal of evolutionary psch? 3) What is human nature? 4) Evidence for evolution?l) the study of human nature in the light of evolutionary thought
2) to answer why we are the way we are
3) a set of species-specific traits that distinguish humans from other species
4) fossils (transitional); shared traits (common descents, common developmental pathways -> embryology); traits that serve no function (e.g. ear muscles in humans) - 21) definition of evolution 2) Misconceptions1) heritable changes in a population over time; the change in gene frequencies in a population over time
2) evolution is not progressive; it doesn't have a purpose; it's not the same as natural selection; it does have evidence - 31) Mechanisms pre-Darwin (Bonnet, Lamarck) 2) Darwin1) Bonnet: progressive changes by catastrophes
Lamarck: transmutation of species by inheritance of acquired characters
2) Natural (and sexual) selection - 41) Natural selectionEnter text here...
- 51) Whom does adaption benefit? 2) Inclusive fitness; direct fitness; indirrect fitness1) Genes
2) number of gene copies passed on to the next generation; direct fitness: self to offspring (half a copy); indirect fitness: self to nephew (one-fourth copy); Inclusive fitness = Indirect + direct fitness - 61) which traits does adaptation favour? 2) What is adaptation? 3) are all biological traits adaptive?1) Adaptation favours traits that maximise inclusive fitness
2) A trait that shows evidence of having been shaped by Natural Selection for enhancing reproductive success
3) no!, evolutionary by-products (male nipple); maladaptive but tradeoff with benefits (choking and speech in humans) - 71) Sexual selectionEnter text here...
- 81) two kinds of sexual selection 2) Inter-sex selection 3) Intra-sex selection1) Inter-sexual and intra-sexual selection
2) e.g. peacock's tail; females prefer long, colourful tails (suggests health etc.), but the tail is actually a handicap for the male, but evolution keeps it bc the females like it
3) competition for mates within gender (size, weapons, strategy etc.)
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- (Evolution) Psychology Fichas sobre Evolution L1, creado por Marianne Hug el 10/05/2017.
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- Marianne Hug
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