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Worksheets7th Grade Lesson 6
Total questions: 11
Worksheet time: 6mins
What do scientists use as models to show feeding relationships between populations in an ecosystem.?
Food chains or food webs
What is it called when populations in a food web can also affect other populations in the food web, even if they don’t interact directly?
What is an interaction in a food web where one population directly affects the abundance of another?
Indirect Effect
Direct Effect
Which of these is an example of a producer?
Which of these is a consumer?
A producer is something that:
Eats plants
Makes its own food
Eats animals
Eats plants and animals
Producers are always at the __________ of a food chain
Beginning
Middle
End
Producers are not part of the food chain
What do the arrows show in this food chain:
plant → grasshopper → bird → snake → owl.
The arrow points from the organism being eaten to the organism that eats it.
The arrow points from the organism that eats it to the organism that is being eaten.
The arrow points from biggest animal to smallest animal.
The arrow points from the consumers to the producers.
How much energy does trophic level 2 store from trophic level 1? (and so on..)
1%
10%
50%
100%
