Download Evolution Unit Test Review

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts
no text concepts found
Transcript 
Evolution Unit Test Review
Introducing Evolution
Adaptation and Variation
 Adaptation leads to survival
 Mutations as source of variation
Natural and Artificial Selection
 How natural selection acts
 Selective pressure based on environmental conditions
 Artificial selection technology
 Consequences of artificial selection (biological, societal, ethical, etc.)
Developing a Theory of Evolution
Scientific contributions
 Palaeontology and fossils
 (Jean-Baptiste) Lamark
o Inheritance of acquired traits (use and disuse)
 (Charles) Darwin
o Theory of evolution by natural selection
o Based in hundreds of observations
o Survival of the fittest
o Descent with modification (not improvement)
Evidence
 Fossils, transitional fossils, vestigial structures
 Homologous and analogous structures
 Embryology
 DNA (Molecular Technology Activity)
Evolution and Speciation
Mechanisms of evolution
 Mutation, gene flow, non-random mating, genetic drift, natural selection, sexual
selection
Speciation
 Reproductive isolation leads to speciation
 Pre- and post-zygotic isolating mechanisms
 Sympatric vs. Allopatric speciation
 Divergent vs. Convergent evolution
 Gradualism vs. Punctuated equilibrium
 Effect of human activity on speciation
 Extinction
Related documents