5.4: the theory of evolution

B4 The theory of evolution
  • Put your things on your desk
  •  Laptop, pencil case
  • Start by reading: Lesson material of basic 5.4. Pages 125-128
timer
6:00
Lessongoals
  • You can describe the theory of evolotion
  • You can list and explain the 3 main 'parts' of evolution
  • You can name  examples  in support of the theory of evolution
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Slide 1: Diapositive
BiologieMiddelbare schoolhavo, vwoLeerjaar 2

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B4 The theory of evolution
  • Put your things on your desk
  •  Laptop, pencil case
  • Start by reading: Lesson material of basic 5.4. Pages 125-128
timer
6:00
Lessongoals
  • You can describe the theory of evolotion
  • You can list and explain the 3 main 'parts' of evolution
  • You can name  examples  in support of the theory of evolution

Slide 1 - Diapositive

Evolution has to do with ..

Slide 2 - Carte mentale

Evolution is about...

  • The emergence of new species (all organisms)
  • The way in which these species arise
  • Determining which species are related to each other

Slide 3 - Diapositive

Evolution is NOT about ..
  • How life came to be
  • How the universe/solar system/earth/etc. came to be
  • If God exist

Slide 4 - Diapositive

3 main mechanisms
Evolution can be summarized  into these 3 mechanisms:
  1. Variation in genotypes
  2. Natural selection
  3. New species arise

Slide 5 - Diapositive

Variation in genotypes
  • Sexual reproduction > new/different genotypes
  • New genotypes > new/differnet phenotypes
  • Lot's of changes in genotype >    DNA changes 'too' much > new species

Slide 6 - Diapositive

Slide 7 - Vidéo

Natural selection
  • Species who have adapted to 
        their environment will survive
        and reproduce
  • 'Good' genes are  passed  on
  • 'Bad' genes dissapear

Slide 8 - Diapositive

New species arise



Animals of same species are  split up
The environment slowly changes.

Because of natural selection, other genes are 'good' in new environment

Species have become different species after many years of evolution, due to living apart
more examples

Slide 9 - Diapositive

New species arise
  • New species arise due to LONG periods of evolution in a species
  • Many small changes together  become big changes
  • Evolution takes very long! (thousands of years)

Slide 10 - Diapositive

What is the deciding 'thing' that tells you that two organisms belong to the same species?

Slide 11 - Question ouverte

What you should do:
  • Read lesson material 5.4
  • Do asgmt 1-3, 5,6,7
  • Challenge yourself: 8, 9

Done with the above?
  • Learn for the test 
  • Make other homework
  • Read a book
Working with whispering
  • Teacher is available for questions
  • Only whisper with the student next to you
  • Stay at your  desk

Slide 12 - Diapositive