BPOL 1 Flashcards
How can palaeontology be used as proof of evolution
Fossils tell us the structure of bones that can be easily compared with other organisms
Transitional fossils
What is the archaeopteryx and its features
Cross between reptiles and birds
Reptiles - teeth and long tail
Bird - feathers and wings
What are the evidences for the theory of evolution
Palaeontology Comparative anatomy Comparative embryology Biochemistry biogeography
What is the theory of evolution by natural selection
Living things evolved gradually over a long period of time by a process of natural selection where selective pressures in the environment lead to differential survival and reproduction
Describe the theory of punctuated equilibrium
Evolution occurs in short bursts of rapid change followed by long periods of stability within population
Evidence for punctuated equilibrium
Soft bodied organism dominated the seas for hundreds of years, and then in a few period of a few millions of years, they disappeared and were replaced by organisms with shells and skeletons