Darwins 5 postulates

• • Individuals are variable.
  • Some variations are passed down.
  • More offspring are produced than can survive.
  • Survival and reproduction are not random.
  • The history of earth is long.
• Postulate 1


  Individuals are variable, they are all unique
• Postulate 2


  Some variations are passed down every generation
• Postulate 3


  More offspring are produced than can survive
• Postulate 4


  Survival and reproduction are NOT random
• Postulate 5


  The history of the Earth is very long