# 7.6 What have I learnt - How it all began - part 1

7. An epic journey

Benodigheden
- Pen, pencil
- note book
- binder

For a mark
- No

Lessonup
- Yes
Bags
in bag closet
Phones
in phone closet
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Slide 1: Slide
biologieMiddelbare schoolvwoLeerjaar 3

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

Lesson duration is: 45 min

## Items in this lesson

7. An epic journey

Benodigheden
- Pen, pencil
- note book
- binder

For a mark
- No

Lessonup
- Yes
Bags
in bag closet
Phones
in phone closet

#### Slide 1 -Slide

today''s program
revision chapter 7 by Lesson Up

--> take a pen out of your pen case

#### Slide 2 -Slide

apply the evolution theory
the three steps: copy and fill in the gaps
1. V------- in in------ble t----s in a population
2. The more s------- the individual is the longer it s-------, resulting in more opp----ties for r-------- and more o------- (=differential reproduction)
3. As a result the m------ of off------- in a population will have inherited the su-----l t----s, or all---, which help them to f--- in the e------m. And so a population is a------- to its e------nt

#### Slide 3 -Slide

apply the evolution theory to explain..
why polar bears wear a white fur.

#### Slide 4 -Slide

apply the evolution theory to explain ..
why .... (think of a example)
- in pairs
- share in the group
- plenary
timer
5:00

#### Slide 6 -Slide

selection
natural selection: a mechanism for evolution that is the result of d------l r--------n, v------n and h------y
artificial selection: b------g selected organisms with s------c characteristics, in order to obtain offspring with d------d characteristics

#### Slide 7 -Slide

what happens to populations when the best-f.........g in..................s in that p................n keep passing their g...........s on to the next g....................s over time, so that the s..............s as a whole c.............s, and s................s
STRUCTURAL: evolutionary changes in b.......... p............
PHYSIOLOGICAL: evolutionary changes in the c...............l processes inside the c......... of an organism

#### Slide 8 -Slide

How can variety within populations lead to the evolution of different species?

#### Slide 9 -Open question

lamarck
Use and disuse – Individuals lose characteristics they do not require (or use) and develop characteristics that are useful.
Inheritance of acquired traits – Individuals inherit the traits their ancestors acquired during their lifetimes.

apply

#### Slide 11 -Slide

Examples of what is traditionally called “Lamarckism” would include:
- Giraffes stretching their necks to reach leaves high in trees (especially Acacias), strengthen and gradually lengthen their necks. These giraffes have offspring with slightly longer necks (also known as “soft inheritance”).

- A blacksmith, through his work, strengthens the muscles in his arms. His sons will have similar muscular development when they mature.

#### Slide 12 -Slide

huiswerk
learn the key words
learn the theory
next lesson: Clipbirds ... read the booklet.

#### Slide 13 -Slide

How does the comparison of vertebrate embryos support Darwin's theory of evolution?

#### Slide 14 -Open question

what is the best definition of fossil?
A
fossils are preserved remains of once living organisms.
B
fossils are petrified remains, or traces, of organisms or part of organisms from the past.
C
fossils are any preserved remains, impression, or trace of any once-living thing from a past geological age
D
fossils are the preserved remains or traces of organisms (plants, animals, etc) that lived in the distant past

#### Slide 15 -Quiz

What is the role of fossils in the theory of evolution?

#### Slide 16 -Open question

carbon film
preserved remain
cast
mold
trace fossil
petrified fossil

#### Slide 17 -Drag question

How are fossils formed?

#### Slide 18 -Open question

How are fossils dated?

#### Slide 19 -Open question

What is the Big Bang theory?

#### Slide 20 -Open question

How has Earth changed over time?

#### Slide 21 -Open question

How did life on earth change over time?

#### Slide 22 -Open question

What did our human ancestors look like?

#### Slide 23 -Open question

What are the evoltuianry relationships between modern humans and extinct human like creatures?

#### Slide 24 -Open question

Why is the history about the evolution of humans rewritten all the time?