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6.2 Comparing populations
6
.2 Comparing populations
p. 154
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Slide 1:
Tekstslide
Biologie
9th Grade
In deze les zitten
58 slides
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tekstslides
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3 videos
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Lesduur is:
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6
.2 Comparing populations
p. 154
Slide 1 - Tekstslide
Slide 2 - Tekstslide
Describe how this affects both populations (in-/decrease) and why.
Slide 3 - Open vraag
Red vs. Grey Squirrels
Slide 4 - Tekstslide
Slide 5 - Tekstslide
Describe how this affects both populations (in-/decrease) and why.
Slide 6 - Open vraag
Milkweed vs. Butterflies
Slide 7 - Tekstslide
Homework answers (6 - 14)
Slide 8 - Tekstslide
Slide 9 - Tekstslide
Slide 10 - Tekstslide
Slide 11 - Tekstslide
4
Slide 12 - Video
02:17
Which one is correct?
(decomposers = fungi / bacteria)
A
Primary consumer - producer - secondary consumer - decomposer
B
Producer - primary consumer - secondary consumer - decomposer
C
Decomposer - primary consumer - secondary consumer - producer
D
Producer - decomposer - primary consumer - secondary consumer
Slide 13 - Quizvraag
02:37
Which one is the producer?
A
the tree
B
the acorns
C
the rat
D
the snake
Slide 14 - Quizvraag
03:08
Which one is true?
A
A food chain is made from many food webs
B
A food web is made from many food chains
Slide 15 - Quizvraag
03:19
timer
0:20
what does your body
need energy for?
Slide 16 - Woordweb
Slide 17 - Tekstslide
Slide 18 - Tekstslide
timer
1:00
Slide 19 - Tekstslide
How many food chains did you see?
Slide 20 - Open vraag
timer
1:00
Slide 21 - Tekstslide
The longest food chain:
Slide 22 - Open vraag
Workbook page 185
questions 15 a and b
Make a photo and
upload in the next screen!
timer
5:00
Slide 23 - Tekstslide
Slide 24 - Tekstslide
Your answers to Q 15 a and b:
Slide 25 - Open vraag
Slide 26 - Video
Slide 27 - Tekstslide
Practise questions!
Slide 28 - Tekstslide
Which animal(s) would be MOST affected if all the grass died?
hawk
sparrow
caterpillar
grass
fox
mouse
berries
timer
1:00
Slide 29 - Tekstslide
Which animal(s) would be
MOST affected if all the grass died?
Slide 30 - Open vraag
What would happen to all the hawks if the number of foxes would decrease?
hawk
sparrow
caterpillar
grass
fox
mouse
berries
timer
1:00
Slide 31 - Tekstslide
What would happen to all the hawks
if the number of foxes would decrease?
Slide 32 - Open vraag
Mercury in the sea = kwik in de zee
Mercury used to be found in pesticides and paint for boats. Mercury is poisonous and damages the nervous system and reproductive system in mammals.
Look at the food chain and explain why mercury could be a problem for human health.
Slide 33 - Tekstslide
Explain why mercury could be
a problem for human health.
timer
1:00
Slide 34 - Open vraag
Slide 35 - Tekstslide
Slide 36 - Tekstslide
4
Slide 37 - Video
00:27
What are 'trophic levels?'
A
Food chains
B
Food pyramids
C
Horizontals in a food pyramid
D
Food webs
Slide 38 - Quizvraag
01:06
What does the width of the bars represent?
A
How much the organisms in it eat
B
How many organisms are in it
C
How much energy the organisms in it have
D
How many organisms are eaten by the next level
Slide 39 - Quizvraag
01:27
What does each trophic level in a pyramid of biomass represent?
A
How many organisms are in it
B
The combined weight of the organisms in it
C
How heavy the food is that the orhganisms eat
D
How many food items the organisms represent
Slide 40 - Quizvraag
03:00
What does the width of a trophic level in a pyramid of biomass represent?
Slide 41 - Open vraag
Slide 42 - Tekstslide
Slide 43 - Tekstslide
Slide 44 - Tekstslide
Slide 45 - Tekstslide
Slide 46 - Tekstslide
Slide 47 - Tekstslide
Slide 48 - Tekstslide
Slide 49 - Tekstslide
Slide 50 - Tekstslide
Workbook page 187
questions 18 - 22
What you do not finish
now will be homework.
timer
5:00
Slide 51 - Tekstslide
Slide 52 - Tekstslide
Slide 53 - Tekstslide
Slide 54 - Tekstslide
Slide 55 - Tekstslide
Slide 56 - Tekstslide
Slide 57 - Tekstslide
Q's 23 (2) - 25
Slide 58 - Tekstslide
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