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WorksheetsFeeding Relationships
Total questions: 20
Worksheet time: 7mins
The diagram shows the feeding relationships in a food web.
Which organism may feed as both a secondary and a tertiary consumer?
Fox
Owl
blackbird
rabbit
The diagram shows a food web. How many organisms feed at more than one trophic level?
0
1
2
3
The diagram shows energy transfer through a food chain. The labelled arrows
represent the energy transfers.
Which energy transfers are shown by the labelled arrows?
X is heat energy transfer and Z is chemical energy transfer.
Y is chemical energy transfer and X is light energy transfer.
X is chemical energy transfer and Y is heat energy transfer.
Z is heat energy transfer and W is light energy transfer
The organisms in a food chain can be represented by pyramids of numbers or pyramids of biomass.
Which diagram represents a pyramid of numbers?
The diagram contains information about the number and mass of organisms in a food web.
What is the total biomass of all the primary consumers in this food web?
130 kg
420 kg
3650 kg
130 000 kg
The diagram shows a pyramid of numbers.
What is the correct description of the trophic levels?
A
B
C
D
The diagram shows a food chain in a rock pool. What will happen if the number of secondary consumers increases?
There will be
fewer crabs.
fewer seagulls
fewer whelks
less seaweed
Consider the diagram of a food chain
A
B
C
D
Which trophic level has the greatest amount of energy?
A
B
C
D
The diagram shows the energy within the producers in an ecosystem and how much is transferred to primary consumers and eventually lost to the environment.
How much energy is transferred from primary consumers to secondary consumers?
5 kJ
50 kJ
500 kJ
5000 kJ
The diagram shows a simple food chain.
green plant → herbivore → carnivore
If a disease causes the number of herbivores to decrease, what will be the effect on the numbers of green plants and carnivores?
A
B
C
D
Which process is represented by arrow X?
A combustion
B Feeding
C photosynthesis
D respiration
Which is the correct pyramid of numbers for this food chain?
A
B
C
D
1. convert ammonia to nitrite
2. convert nitrites to nitrates
(a)
The changing of nitrogen gas into a more reactive form is known as...
(a)
How many trophic levels are there?
1
2
3
4
Which animals are the primary consumer?
Foxes, owls, and birds
owls grasshoppers, and grains
carrots, grasses, and grains
rabbits, mice, and grasshoppers
In the food web below, which area, if destroyed, would cause the most disturbance in the ecosystem?
Gazelle
Zebra
Giraffe
Sun
Grass
All biological systems obtain energy from:
(a)
Radiant energy from the sun is converted by organisms into:
(a)
