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Unit 8 - Coggle Diagram

- - - - It is caused by fluctuations in gene allels.
      - Bottleneck Effect: caused by sudden decrease in popoulation usually caused by natrual disaster.
      - Founder Effect: a smaller population creates a new gene pool cause their to be a creation of a specices.
    - - Gene pool is increased or decreased depending of immigration and emmigration of a population
    - - It changes genetic code which also changes the function of a protein
    - - advantages traits that allow organisms to survive and disadavntages traits that prevent an organism's survival
    - - A population can shrink or a small population in general can have a smaller gene pool.
    - - Natural Selection, theory proposed and proved by Darwin and Wallace, is a process in which organisms that are better adapted to their environment survive and reproduce while those who do not have these traits will not be able to survive.
        
        Natural Selection have 4 basics processes variation, inheritance, differential survival and reproduction, and adaptation.
        
        Inheritance
        
        improve odds of survival through inheritance of favorable traits and mutations
        
        Differential Survival and Reproduction
        
        offspring compete for resources and mates
        
        Variation
        
        exsists in population
        
        Adaptaion
        
        advantages traits that allow organisms to survive and disadavntages traits that prevent an organism's surviva
        
        There are 3 types of natural selection directional selection, stabilizing selection, and disruptive selection.
        
        Disruptive Selection: species get one extreme trait that is advantagous
        
        Stabilizing Selection: species gets moderate traits that are adavanatgous
        
        Directional Selection: species gets both extreme traits that are advantagous
    - - It is when species in a population breed selectively with each other so that their offspring gain favorable traits that allow them to survive.
- - - - Many species look similar as embryos. This can imply that they have similar ancestry
    - - Dna and Genetic code provide insight into relationships between species and can help identify common ancestry
    - - Realted species share similar bone structure
        
        Homologous structures- similar in their structure but perform
        Different functions
        
        Analogous structures- different morphology yet perform same
        Function
        
        Vestigial structure- structure is still present, yet is not functional
    - - Location of species can change the traits of a species to be more advantagious to survive in the region
    - - provides glimpses into the past to show the changes that an organism has under gone and how it has evolved