Flashcards
Evolution
Flashcards do conjunto (11)
- 1Socioecologystudying how the social system evolves in response to ecological conditions
how social & physical environment affects behaviour - 2Behavioural Ecologystudying the relationship of distribution, morphology, behaviour and social organisation of habitats
- 3Analogous Featuressimilar features that evolved independantly but have similar functions and therefore similar structures
similarity based on function
e.g. bird's wing + bat's wing - 4Homologous Featuressimilarity based on ancestry
similar features that evolved from common ancestry and therefore share similar structure
e.g. bird's wing + human hand bones - 5Vestigial Featuresgenetically determined structures that have lost their ancestral function but are still retained through evolution
e.g. human appendix - 6Atavistic Featuresthe return or partial return of features that were common in ancestors
e.g. modern horses with extra toes - 7Cladogenesisevolutionary splitting where a parent species splits into two distinct species
- 8Anagenesisevolution of species involving change in a lineage over time without speciation
- 9Convergent Evolutionseparate lineages that were quite different but became similar due to similar lifestyles
- 10Homoplasywhen ancestrally unrelated structures look alike
e.g. leaf insect + leaf - 11Phylogenetic constraint'basic body plan' of a species which cannot be altered by evolution
can be modified but never completely changed
Informações
- Descrição
- Key terms used when studying Evolution
- Criado por
- bailey1997
- Visualizações
- 31
- Tags
- Avaliação