Evolution Flashcards
What is evolution?
The process by which change occurs in the heritable characteristics of a population over successive generations
What is Darwin’s theory of evolution?
The origin of species 1859, Galapagos islands, noticed variations within species
What is survival of the fittest?
Animals adapting over time
What is natural selection?
Adaptations were passed on to offspring through selective breeding
What are adaptations to the environment?
- arboreal
- terrestrial
- nocturnal
- diurnal
- crepuscular
What are communication behaviour adaptations?
- Acoustic
- Chemical communication
- mimicry
What are life cycle behaviour adaptations?
- Courtship displays
- Maternal and paternal care
- Parental investment
What are locomotion behaviour adaptations?
- climbing
- flying
- gliding
- jumping
- swimming
- running
How do we expect animals to adapt to climate change?
- hibernation ending earlier
- breeding earlier in the year
- territories increasing
- diet changes
- moving north to find cooler areas
What is convergent evolution?
Unrelated species evolve similar behaviours due to similar environmental pressures
What is divergent evolution?
Closely related species may evolve different behaviours owing to environmental pressures
