13 terms

ENERGY FLOW IN ECOSYSTEMS

STUDY
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Why are mushrooms important to the food chain?
They recycle nutrients into the ecosystem.
They produce food energy for other living things.
They recycle oxygen into the atmosphere.
They consume excess herbivores in the ecosystem.
They recycle nutrients into the ecosystem.
A diagram illustrates that grass is eaten by insects, birds, and mice. The insects are eaten by hawks, snakes, and toads. The birds and mice are eaten by foxes, hawks, and snakes. The toad is also eaten by the snake. Which best describes the diagram?
pyramid
food chain grid
food web
trophic level
food web
Energy flows from the producer level to the _______ level.
consumer
Which organism is a primary consumer in the food web below?

http://media.edgenuity.com/evresources/3209-13-05/mc020-1.jpg

herbivorous duck
bald eagle
osprey
vegetation
herbivorous duck
Maggots feed on dead and decaying organisms for energy. What are maggots?
autotrophs
producers
decomposers
heterotrophs
decomposers
Which is the primary consumer in this food chain?

http://media.edgenuity.com/evresources/3209-13-05/mc011-1.jpg

rabbit
grass
snake
hawk
rabbit
Which is an interconnection of food chains in an ecosystem?
food web
trophic chain
energy web
producer web
food web
In the food chain below, which is the producer?

flower mc010-1.jpg mouse mc010-2.jpg snake mc010-3.jpg hawk

flower
mouse
snake
hawk
flower
What might happen to the food web below if the number of phytoplankton drastically decreased?

http://media.edgenuity.com/evresources/3209-13-05/mc011-1.jpg

The small fish and wading birds would be affected.
Only the small fish would be affected.
The small fish, bivalves, and invertebrates would be affected.
The entire food web would be affected.
NOT The small fish, bivalves, and invertebrates would be affected.
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
secondary consumer
Which kind of organism is a heterotroph?
photosynthesizers
producers
consumers
plants
consumers
Which process do plants use to turn sunlight into food energy?
photosynthesis
cellular respiration
transpiration
evaporation
photosynthesis
Which kind of organism is an autotroph?
consumer
producer
decomposer
herbivore
producer