Natural Selection 0.0 / 5 ? PsychologyEvolutionUniversityNone Created by: JessToLetYouKnowCreated on: 01-06-16 20:00 What year was Darwin's origin of the species? 1859 1 of 25 In what did Darwin find adaptive variation in birds? Beaks 2 of 25 What is the first stage in natural selection that exists naturally? Variation 3 of 25 Some of this variation is... Heritable 4 of 25 More... are produced than can ... Offspring, survive 5 of 25 This leads to ... survival of the fittest 6 of 25 Such great diversification could lead to... a new species being created 7 of 25 What are passed from one generation to the next? Genes 8 of 25 What means individual differences develop? Alleles 9 of 25 What was used to induce mutations in the case of the fruit fly? Radiation 10 of 25 What led to the variations in activity cycles (longer or shorter)? Period gene 11 of 25 What do warbler's display if prevented from migrating? Restlessness 12 of 25 Therefore what strains can be developed? Migratory and non-migratory 13 of 25 What selection is related to when animals behave for good of the group? Group selection 14 of 25 what is one example of this? Lion's not fighting to the death 15 of 25 What three things does it explain? Threat displays, population control, dominance heirachy 16 of 25 What is an example of threat displays? Red deer threat display opposed to fighting 17 of 25 What is an example of population control? Birds lay less eggs than they can incubate to prevent draining resources 18 of 25 Who presented a theory of dominance heirachy? Wynne-Edwards 19 of 25 What is the main explanation for dominance heirachy? It controls population due to submission being detrimental to reproduction 20 of 25 What are three criticisms of group selection? Traits evolve that detriment group, cheats always prosper and species don't go extinct fast enough 21 of 25 Who said that natural selection operates at individual level? Darwin 22 of 25 However, if it did why would ... look after ... Parents, offspring 23 of 25 If populations are ... , why do we ... Selfish, co-operate 24 of 25 Why do individuals accept ... status Submissive 25 of 25
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