Evolution Flashcards
What is:
Evolutionary biology:
The study of the history of life forms
When:
was the universe formed?
20 billion years ago
When:
was the Earth formed?
4.5 billion years ago
When:
did the first life form originate?
4 billion years ago
List:
The theories of the origin of life:
- Theory of Abiogenesis
- Theory of Biogenesis
- Theory of Panspermia
- Theory of special creation
- Theory of chemical evolution
When:
did the first cellular life form appear?
2000 million years ago
List:
The evidences for evolution:
- Paleontological evidences
- Morphological and anatomical evidences
- Biochemical evidences
- Biogeographical evidences
- Embryonical evidences
- Evidences by natural selection
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Homologous organisms pertain to—-
— divergent evolution
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Analogous organisms pertain to —
– convergent evolution
List:
The theories of biological evolution:
- Lamarck’s theory of inheritance of acquired characters
- Darwin’s theory of natural selection
- The mutation theory of De Vries
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Darwinism was based on 2 key concepts: —-
— branching descent and natural selection
List:
The concepts related to natural selection:
- Minor heritable variation
- Overproduction
- Limited resources
- Struggle for existence
- Survival of the fittest
List:
Factors affecting the Hardy-Weinberg equilibrium:
- Genetic migration
- Genetic drift
- Mutation
- Genetic recombination
- Natural selection
List:
Types of natural selection:
- Stabilising selection
- Directional selection
- Disruptive selection
List:
4 eras of the geological time scale:
- Proterozoic (2500 - 541)
- Paleozoic (541 - 252)
- Mesozoic (252 - 66)
- Cenozoic (66 - 0)
