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Bio 11 (16-17) Lesson 13 Oct 20th

Biology 11 (16-17) Lesson 13                                         Date Oct 20th 2016



Last lessons


1)    story of Evolution Timeline

2)    Darwin verse Lamarck

3)    Problems with Linneaus, Taxonomy and DNA


Today’s Objectives 1)    Darwin’s Finches

2)    The rate of change: punctuated or gradual

3)    Introduction to Taxonomy



Number One

So here is the six mark question: How did the diversity of finches on the Galopagos Islands occur according to Darwin’s mechanism for change.


Key points.

1)    A population of finches arrived to the Islands from mainland south America, perhaps Ecuador.

2)    On the initial island there was:

·      Plenty of food

·      Niches to set up territories

·      No natural predators

3)    As the species started to grow, there began a competition of food and space.

4)    Some species born did not have the correct beak to get food and they migrated to another island.

5)    On the new island, those species that survived were those species that had the right beak adaption to get food. ( See definition for adaptive radiation)

6)    Each Island has its own unique climate and habitat, the species that had the best beak to get food on that island became the dominant species on that island.


Wallace discovered the same pattern with islands



Wallace web page


Wallace paper to Linneaus society




Number Two

Rates of Change: Gradual verses Punctuated Equilibrium



What is adaptive radiation and how can it help explain different rates of change?

Darwin’s Dilemma



Video to compare

·      https://www.youtube.com/watch?v=SP553wXgXJc

·      https://www.youtube.com/watch?v=qWUqQyVa5ts

·      https://www.youtube.com/watch?v=4eEEWwwezlw




Number Three

Why the confusion with Taxonomy and Evolution

a)   Taxonomy came first and did not consider DNA

b)   Evolutionary theories did not know about DNA

c)   Gradual and Punctuated Equilibrium


What is taxonomy and Linneaus’s plan

·      https://www.youtube.com/watch?v=aiC_Z8Za7wc

·      https://www.youtube.com/watch?v=KPtAuojPQVQ

·      https://www.youtube.com/watch?v=F38BmgPcZ_I


What is the difference between a system using kingdoms verses Domains?


Text book Ref


Chapter 3 Darwin’s theory of evolution, rate of change and adaptive radiation

Chapter 6: Traits and allele frequency

Chapter 7: Taxonomy


Online Misconceptions about evolution http://evolution.berkeley.edu/evolibrary/misconceptions_teacherfaq.php


Practice Evolution quizzes

·      http://anthro.palomar.edu/practice/evoquiz2.htm

·      http://highered.mheducation.com/sites/0073031208/student_view0/chapter20/multiple_choice.html

·      https://www.cliffsnotes.com/study-guides/biology/biology/principles-of-evolution/quiz-theory-of-evolution



Take Home Message To simplify a problem, make it into small pieces. Paraphrase of Einstein.


posted by Marc Bernard Carmichael in Biology Eleven,Biology Eleven Lesson Outline and have No Comments

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