WorksheetsEnergy flow/Food webs
Total questions: 21
Worksheet time: 10mins
Which process do plants use to turn sunlight into foood energy?
Cellular respiration
Photosynthesis
Transpiration
Evaporation
Which kind of organism is an autotroph?
Producer
Consumer
Decomposer
Herbivore
Which organism is a producer?
Cheetah
Rose bush
Mushroom
Moth
What role do mushrooms play in a food chain?
They consume excess herbivores in the ecosystem
They produce food energy for other living things
They recycle nutrients into the ecosystem
They recycle oxygen into the ecosystem
Maggots feed on dead and decaying organisms for energy. What are maggots?
Autotrophs
Heterotrophs
Producers
Decomposers
In the food chain below, which organism is the producer?
Grass --> Mouse --> Snake --> Hawk
Grass
Mouse
Snake
Hawk
Which organism is the secondary consumer in the food chain below?
Grass --> Rabbit --> Snake --> Hawk
Grass
Rabbit
Snake
Hawk
Yellowfin tuna, or Thunnus albacores, are large sport fish that are found in tropical and subtropical waters around the world. They typically school under objects such as boats or patches of driftwood for protection from predators. Schooling under these structures also provides yellowfin tuna with easy access to a food source such as smaller herbivorous fish that may be foraging for food around the structures. Which trophic level does yellowfin tuna fill in a food chain?
Producer
Primary Consumer
Secondary Consumer
Tertiary Consumer
n reach?Food chains show energy transfer between organisms. The size of a food chain can vary, yet there is a limit to the number of levels that a food chain can reach. Why is there a limit to the number of levels that a food chain can reach?
Plants are not infinite
Producers can only eat what is available
Carnivores are too big to be eaten
Energy is lost when you move up a trophic level
Which of the following describes an interconnection of food chains in an ecosystem?
Food chain
Food web
Energy pyramid
Producer web
What is the image an example of?
Food chain
Food web
Energy pyramid
Energy pyramid
Which organism is the primary consumer?
Phytoplankton
Gulls and terms
Osprey
Herbivorous duck
What would happen to the organisms in the food web below if the number of phytoplankton and vegetation decreased?
Only the small fish would be afffected
Only the osprey would be affected
The small fish and wading birds would be affected
The entire food web would be affected
What would happen to this food chain if we doubled the population of the rabbits?
The populations of the snakes and hawks would also increase
The populations of the grass, snakes and hawks would decrease
The grass population would decrease. The snake and hawk population would increase
The grass and hawk population would decrease. The snake population would increase
Which most likely caused the rabbit population (light green line) to decrease over the first time unit (0 to 1) in the graph?
A decrease in the rabbit population
A decrease in the amount of grass avaliable
A decreasing population of hawks
A higher population of snakes than normal
Trapping (or rabbit hunting) has severely reduced the population of rabbits in an ecosystem as shown in the bar graph. What is the most likely effect this will have on other organisms?
The snake population will decrease while the grass population will increase
The hawk population will increase and the rabbit population will decrease
The grass population will decrease and the snake population will increase
The grass, rabbit, snake and hawk populations will all decrease rapidly
If a disease were to affect the snakes in the food chain, what will be the initial (beginning) effect on the populations of hawks and rabbits?
The populations of hawks and rabbits will decrease
The populations of hawks and rabbits will increase
The population of hawks will increase. The population of rabbits will decrease
The population of hawks will decrese. The population of rabbits will increase
What is the primary source of energy for the ecosystem pictured above?
Grass and green plants
Hawks and deer
Tadpoles and fish
Sun
In this food web, which of the following organisms eats the largest variety of different producers?
Mouse
Grasshopper
Dragonfly
Butterly
The arrows in a food chain or web represents what?
They point to the organism that is being eaten
It shows how sunlight flows within an ecosystem
They show what direction the energy is flowing between organisms
They represent how water is transferred within a habitat
What will happen to the rabbit population if the owl population becomes bigger?
The rabbit population will become smaller
The rabbit population will become bigger
The rabbit population will stay the same
