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WorksheetsFOOD CHAINS AND FOOD WEBS
Total questions: 22
Worksheet time: 6hrs 30mins
Which of these completes the food chain correctly?
a rock
a fox
a plant
an egg
Which of these is a possible food chain for this environment?
Sun → grass → fly → frog
frog → fly → grass → Sun
Sun ← grass ← fly ← frog
Sun → fly → frog → snake
heterotroph
What is the effect of removing prey from a food chain?
All predators above them will die or suffer.
The prey's predator will die or suffer, but everybody else should be fine.
The prey will always, eventually, come back
The predators population will grow
If the mouse population becomes sick and decreases, which statement about the food web will be true?
The grass population will decrease.
The hawk population will increase.
The grass population will increase.
The wildflower population will decrease.
20 carnivore
none of these
How might a lack of sunlight disrupt the food web?
It would cause consumers to consume less
It would prevent decomposers from decomposing matter
It would prevent producers from making their own food.
It would not disrupt the food web at all
(a) are autotrophs that use energy from chemicals to build organic compounds out of carbon dioxide or similar molecules.
In the pyramid B corresponds to which level:
Primary producer
Primary consumer
Secondary consumer
Tertiary consumer
What is bioaccumulation?
A habitat in which some animals live in.
Lots of food webs joined together from a specific ecosystem.
When toxins accumulate in living organisms' bodies.
none of these
How are detritivores and decomposers different?
decomposers break down dead, organic materials while detritivores eat dead organisms and wastes
detritivores break down dead, organic materials while decomposers eat dead organisms and wastes
There isn't a difference between detritivores and decomposers
decomposers come before detritivores
Based on the diagram who would be a primary consumer?
Rabbit
Owl
Fox
Grass
what is a Food web?
A network of food chains interconnected at various trophic levels
Shows the loss of energy in each trophic level
A " sequence of organisms, each of which uses the next lower member of the sequence as a food source."
Each step in food chain
