Main topics: feeding relations, carbon and nitrogen cycles, pyramids and succession
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Slide 1: Tekstslide
BiologieMiddelbare schoolvwoLeerjaar 3
In deze les zitten 10 slides, met interactieve quizzen en tekstslides.
Lesduur is: 30 min
Onderdelen in deze les
Ecology 6.1-6.6
Main topics: feeding relations, carbon and nitrogen cycles, pyramids and succession
Slide 1 - Tekstslide
The cod (kabeljauw) feeds on the lodde, a tiny fish that feeds on animal and plant based plankton
Slide 2 - Tekstslide
To which 2 links can you ‘assign’ the cod (kabeljauw)?
A
Producer, consumer
B
Primary consumer, secondary consumer
C
Secondary consumer, tertiary consumer
D
Tertiary consumer, detrivore
Slide 3 - Quizvraag
When there is succession in an ecosystem then...
A
The total biomass will decrease
B
The number of species in the system wil remain constant
C
The number of species in the system will increase
D
The number of species in the system will decrease
Slide 4 - Quizvraag
Menno states: a pyramid of numbers is always a pyramid shape Wilco states: the last link in the foodchain always has the most biomass Which statement(s) is/are correct?
A
Both are correct
B
Only Menno is correct
C
Only Wilco is correct
D
None are correct
Slide 5 - Quizvraag
Biotic
Abiotic
Sunlight
Parasites
Detrivores
Temperature
Soil composition
Plants
Slide 6 - Sleepvraag
What is the function of bacteria and fungi in the nutrient cycle?
A
They fotosynthesise
B
Clear up non biodegradable waste
C
Are consumers
D
Convert waste into plant available nutrients
Slide 7 - Quizvraag
“Het IJsselmeer” used to be called the “Zuiderzee” and was filled with salty water. With the construction of the “afsluitdijk” the area turned from salty to fresh water. This affected the fish species in this area
Slide 8 - Tekstslide
With the switch from salt to fresh water in the ‘IJsselmeer’ some fish species disappeared, others flourished. The herring disappeared. The stickleback remained. Which tolerance curve belongs to the stickleback?
A
Curve A
B
Curve B
C
Curve C
D
Curve D
Slide 9 - Quizvraag
What is the role of soil bacteria in an ecosystem?