WorksheetsImpacts on Ecosystems
Total questions: 12
Worksheet time: 19mins
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.
What is the producer in this food chain?
phytoplankton → krill → fish → shark
Phytoplankton
Krill
Fish
Shark
As you move through a food chain, the amount of energy stored....
Increases
Decreases
Stays the same
It depends on the ecosystem
A chemical pesticide was applied to an area of this ecosystem by a landowner to control the mouse population. There was a decrease in the mouse population due to the presence of this pesticide. Which one of the following would most likely occur due to this change in the ecosystem?
The amount of grass would decrease.
The snake population would increase.
The rabbit food supply would increase.
The snake food supply would increase.
The picture shows the energy flow through a meadow community. Which of the following would most likely occur to the populations within the community of organisms immediately after a wildfire burns the environment?
Hawks would increase and foxes would increase.
Hawks would decrease and foxes would increase.
Meadow plants would increase and rabbits would decrease.
Meadow plants would decrease and rabbits would decrease.
The picture shows an energy pyramid. What will most likely happen to the foxes and the wolves if the rabbits are removed?
The foxes will eat more wolves.
The foxes will eat fewer wolves.
There will be more foxes and wolves.
There will be fewer foxes and wolves.
The diagram provided shows a marine food chain. In this food chain, the zooplankton are
primary producers.
primary consumers.
secondary consumers.
tertiary consumers.
Which action will result in the greatest decrease in rain forest stability?
removing one species of plant for medicine
harvesting nuts from trees
cutting down all the trees for lumber
powering homes with wind energy
Look carefully at the image. If energy is lost as it moves up the food chain, what trophic level has the most amount of energy?
1st level - producers
2nd level - primary consumers
3rd level - secondary consumers
4th level - tertiary consumers
Producers get energy from (a)
primary consumers eat (b)
secondary consumers eat (c)
tertiary consumers eat (d)
organisms that no one else eats are (e)
