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darwin/ lamarke theo

intro to biology, darwin/lamarkes theories

QuestionAnswer
what is lamarkes theory of evolution? the features you aquire in your life will be passsed on to your offspring
what is darwins theory of evolution? natural selection
variation a mutation, change in DNA
carbon dating gives an age of a sample based on the amountof radioactive carbon in a sample
fossil record creates a geological time scale
vestigal organs seemingly functionless parts of the body
homologous structures structures that are embryologically similar, but have different functions, the wing of a bird and the forearm of a human
adaptations favorable variations
embrological development embryos of different species develop almost identically
1st step in natural selection process variation exists among individuals of the same species
2nd step in natural selection process individuals of species will compete for resources ( food and water)
3rd step in natural selection process some competition would lead to the death of some individuals while others would survive
4th step in natural selection process individuals that had an adventageous variations are more likely to survive and reproduce
Created by: sashy
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