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Honors Biology-Dr. Langdon
Framingham High School

email:  rlangdon@framingham.k12.ma.us
voicemail extension: 27627 (email preferred)
Course Guidelines in Word or PDF Format



  • Homework 1: Darwinian Evolution Doc | PDF
  • Homework 2: Evolution of Populations  Doc | PDF KEY to 10-15 (the H-W problems) Doc | PDF
  • Homework 3: Speciation Doc | PDF KEY Doc | PDF
  • Homework 4: Phylogeny Doc | PDF KEY Doc | PDF



Exam Preparation

Interesting Links


Survival of the fittest

This picture beautifully illustrates Alfred Russel Wallace's phrase "Survival of the Fittest".  Darwin never said these words: he always used "Descent with Modification".

Wallace was a British naturalist who came up with a similar theory of evolution while working in Borneo. Darwin was first, and had a much more detailed explanation of what is now considered the Theory of Natural Selection.