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Evolution - The process by which species get more adapted to their…
Evolution - The process by which species get more adapted to their environments
Natural Selection - The process by which species survive in the environment and reproduce more then those who do not have those survival advantages
Disruptive - Favors either of two extremes
Stabilizing - Selection which favors a moderate trait over any extremes
Directional selection - Selection which favors one of two extreme traits
This results in...
Genetic Drift - The process of a phenotype's ratio changing in a population.
Can be sped up or affected by...
Bottle neck effect - A term that describes an unrelated event which wipes out a lot of the population and reduces the gene pool's diversity.
Founder effect - A term that describes a small group of a population that gets isolated and eventually species.
Gene flow - A term used to describe the immigration of a new allele from a different population
Evidence of Evolution
Fossil - Evidence of evolution can be seen the morphological images in fossils of the past in similar locations.
Morphological - Evidence that is seen the the animals prototypes.
Specific morphological structures
Homologous - Structures have common origin and at one point were the same, but have now becomes used for different purposes
Vestigial - Structures that no longer serve a purpose and are a result of evolution not taking complete effect.
Analogous - Structures have come from different species of different origins yet are used for a very similar purpose, usually to solve the same problem
Genetic - Evidence can be seen in genetic code by examining differences in genes/amino acids.
Types of evolution
Convergent - Two species that do not share recent common ancestry that evolved in similar ways due to a similar environment.
Coevolution - Evolution where two species depend on one another and evolve to better adapt to each other
Divergent - Two species with common ancestry that evolve into different ones due to differing environments.