7.1 (2) An Epic Journey

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Slide 1: Diapositive
Biologie9th Grade

Cette leçon contient 45 diapositives, avec quiz interactifs, diapositives de texte et 2 vidéos.

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Slide 1 - Diapositive

Slide 2 - Diapositive

What is the biological
definition for 'species'?
timer
1:00

Slide 3 - Question ouverte

How did Darwin explain the variety in species of finches on the Galapagos Islands?
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0:40
A
The different species all flew from the mainland
B
One island had a species, some flew to other islands and adapted there
C
All the islands had the same species which later adapted in different ways
D
The mainland had 1 species, some flew to the islands and adapted in different ways

Slide 4 - Quiz

Name a physical
adaptation of the finches

Slide 5 - Carte mentale

Why did each species of finch have a different physical adaptation?
A
Because the environment on each island is different
B
Because they get more food if they adapt
C
Because of accidental circumstances
D
Because they get more offspring if they adapt

Slide 6 - Quiz

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Slide 12 - Vidéo

What is meant by adaptation in biology?
A
The best-fitting individuals adapt to the environment.
B
A population consists mainly of best-fitting individuals.
C
A population changes when mostly best-fitting individuals pass on genes.
D
A population changes because only best-fitting individuals survive.

Slide 13 - Quiz

What is differential reproduction?
A
The best fitting individuals will have best-fitting babies.
B
The best-fitting individuals reproduce more.

Slide 14 - Quiz

A leaf insect evolved through
a type of adaptation called...
A
Structural adaptation
B
Natural selection
C
Mimicry
D
Physiological adaptation

Slide 15 - Quiz

Homework check
WB page 209
q's 3, 5, 7, 11a

Slide 16 - Diapositive

Types of adaptations
1.  Structural = of body parts (fur colour, beak shape etc.)
2. Physiological = of body chemistry (enzymes, immunity etc.)
3. Camouflage = of blending in with the environment
4. Mimicry = of looking like another species 

Slide 17 - Diapositive

A peacock's tail evolved through
a type of adaptation called...
A
Structural adaptation
B
Natural selection
C
Mimicry
D
Physiological adaptation

Slide 18 - Quiz

Super bacteria evolved through
a type of adaptation called...
A
Structural adaptation
B
Natural selection
C
Mimicry
D
Physiological adaptation

Slide 19 - Quiz

A hover fly evolved through
a type of adaptation called...
A
Structural adaptation
B
Natural selection
C
Mimicry
D
Physiological adaptation

Slide 20 - Quiz

Slide 21 - Diapositive

Watch the following video
Find 5 rules (or steps) on how
the process 
of evolution works.

Slide 22 - Diapositive

Slide 23 - Vidéo

So...
What are the 5 rules or steps??

Slide 24 - Diapositive

The 5 rules or steps for evolution
  1. The population has genetic variations
  2. Some variations are favourable in the environment
  3. More offspring are produced than can survive 
  4. Those that survive the struggle (competition) have favourable (fitting) characteristics
  5. A population will change over time

Slide 25 - Diapositive

timer
0:30
Name an
environmental
condition

Slide 26 - Carte mentale

How might a species of bears adapt
when their environment gets colder?
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0:30

Slide 27 - Question ouverte

How might a species of finches adapt when
food can only be found deep inside tree trunks?
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0:30

Slide 28 - Question ouverte

How might a species of foxes adapt
when their snowfields turn into a desert?

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0:30

Slide 29 - Question ouverte

Beware of this misconception 
Who adapts???
The individual does not adapt.
Over time, the population does.

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Workbook
Questions 6, 8, 9 (together)
Questions 16, 17 (alone)

Slide 42 - Diapositive

Homework
Questions 
11a (not b)
16
17

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