Please enable JavaScript.

Coggle requires JavaScript to display documents.

Evolution, this works by the passing down of traits from parent to…

- - - - documents how life has changed over millions of years
        
        older layers of rock show ancient organisms, which are different from modern organisms
    - - rapid spread of antibiotic resistant bacteria
    - - similar features in different organisms based on their decent from a common ancestor
        
        ex: bones in a human arm, a cat's foreleg, a bat's wing, and a whale's flipper
    - - unrelated organisms independently develop similar traits in response to similar environments and environment pressures
        
        ex: kangaroos and jumping mice using powerful hind legs to hop in desert environments
  - - - ex: population of darker peppered moths growing due to pollution, making the trees darker
  - - - published a book called "The Origin of Species"
        
        descent with modification explained
        
        the unity of life, the diversity of life, and the striking ways in which organisms are suited for life in their environments.
- - - - conditions favor individuals exhibiting one extreme of a phenotypic range, thereby shifting a population’s frequency curve for the phenotypic character in one direction or the other
    - - individuals on both extremes of a phenotypic range survive or reproduce more successfully than do individuals with intermediate phenotypes
    - - intermediate phenotypes survive or reproduce more successfully than do extreme phenotypes
  - - - intersexual selection
        
        A form of natural selection in which individuals of one sex (usually the females) are choosy in selecting their mates from the other sex; also called mate choice.
      - intrasexual selection
        
        A form of natural selection in which there is direct competition among individuals of one sex for mates of the opposite sex.
- - - - adaptation- trait that was passed down and increases an organisms survival in its environment
  - - - thought that Darwin had developed and tested the idea of natural selection so extensively that he should be known as its main architect.
  - - - ex: the long, muscular neck of the living giraffe had evolved over many generations as giraffes stretched their necks ever highe
        
        this theory was proved wrong
    - - Genus family
        
        ex: Homo sapiens (italicized)
- - - - reduces genetic variation
      - ex:is the random survival and reproduction of a rabbit population where a flood wipes out most of the white rabbits, leaving primarily brown ones to reproduce
    - - increases genetic variation
      - ex: humans moving and having children in new countries
  - - - p (percentage of dominant allele) +q (percentage of recessive allele)=1(100%)
  - - - ex: hair color, eye color