Selection

• Species

  A group of organisms that have similar traits and can interbreed
• Stabilising Selection

  • Acts against both extremes
  • Standard Deviation and Variation around the mode decreases
  • Mode stays the same
• Directional Selection

  • Acts against one extreme, so the alternative phenotype becomes more common
• Disruptive Selection

  • Acts against the m
  • Modal phenotype
  • To form two peaks
• Selection

  A process by which organisms that are better adapted to their environment survive and breed, while those less well adapted fail to do so