The theory of evolution

1 / 25

Slide 1: Slide

BiologieMiddelbare schoolhavo, vwoLeerjaar 3

This lesson contains 25 slides, with interactive quizzes, text slides and 2 videos.

Lesson duration is: 30 min

Items in this lesson

Slide 1 - Slide

Who is this?

Slide 2 - Slide

Who is this?

Learning objective:

You can describe the theory of evolution

Slide 3 - Slide

Slide 4 - Slide

What do you know already about the theory of evolution?

Slide 5 - Mind map

Evolution

The development of life on Earth, with species appearing and changing and/ or disappearing

Slide 6 - Slide

Charles Darwin

A nineteenth-century English scientist

Developer of the theory of evolution

Slide 7 - Slide

Video assignment. Write the questions in your notebook

What causes variation in a species?
What is the advantage of variation?
How do new species arise?

Slide 8 - Slide

Slide 9 - Video

Variation in genotypes

Caused by:

- Sexual reproduction

- Mutations

Slide 10 - Slide

Variation in genotypes caused by mutations and sexual reproduction

Slide 11 - Slide

Let's work a bit

Make question 1 p. 130

timer

2:00

Slide 12 - Slide

Natural selection

An organism can be well or poorly adapted to its environment → this determines its chance of survival.

Organisms with 'beneficial' traits for that environment:

Have (many) offspring

The beneficial traits are passed on.

Slide 13 - Slide

In the polar region (snow), which organism has the greatest chance of survival and reproduction?

In the polar region (snow), which organism has the greatest chance of survival and reproduction?

In the polar region (snow), which organism has the greatest chance of survival and reproduction?

In the polar region (snow), which organism has the greatest chance of survival and reproduction?

In the polar region (snow), which
organism has the greatest chance of survival and reproduction?

The red fox

The white fox

Slide 14 - Quiz

Slide 15 - Slide

Explain how the giraffe has a long neck through natural selection

timer

1:00

Slide 16 - Slide

Species

Organisms belong to the same species when they can reproduce with each other and produce fertile offspring.

Slide 17 - Slide

When does a species have the greatest chance of survival?

If there is no variation in genotype and phenotype

If there is variation in genotype and phenotype

Slide 18 - Quiz

Changes in the environment

Slide 19 - Slide

The species is changing, but remains a single species

Slide 20 - Slide

Obstacle between two groups (isolation) causes new species

Slide 21 - Slide

Divergence , adapation , new species arises

Slide 22 - Slide

Natural selection

An organism can be well or poorly adapted to its environment → this determines its chance of survival.

Organisms with 'beneficial' traits for that environment:

Have (many) offspring

The beneficial traits are passed on.

Slide 23 - Slide

Let's work

Unit 5.4 the theory of evolution

Question 2, 3, 5, 7 en 8

Slide 24 - Slide

Slide 25 - Video