Energy Flow in Ecosystems Quiz Flashcards
Which organisms obtain energy from dead or decaying matter? Select two options.
C. Earthworms
D. Bacteria
In order to support all of the organisms in an ecosystem, which should have the greatest amount of biomass?
Producers
In an ecosystem, a deer consumes grass. What percentage of energy will the deer acquire from the grass?
10%
The diagram shows a food web.
https://media.edgenuity.com/evresources/8306/8306-09/8306-09-03/8306-09-03-assessment/8306-09-03-14.PNG
What would most likely happen to the food web if the amount of grass drastically decreased?
The entire food web would be affected
Which of these is a heterotroph?
Consumer
Which process is used by most producers to turn sunlight into food energy?
Photosynthesis
The organisms in a food chain are listed in order of trophic level from left to right.
https://media.edgenuity.com/evresources/8306/8306-09/8306-09-03/8306-09-03-assessment/8306-09-03-25-image1.png
Based on the food chain, if a hawk acquires 50 calories of energy, how much energy did the grasshopper get from the plant?
50,000 calories
Which of these is a producer?
Fern
Which statement best contrasts food chains and food webs?
Food chains show a single path of energy in an ecosystem, and food webs show all the overlapping food chains in that ecosystem
Approximately ____% of the available energy is passed from organisms at one trophic level to organisms at the next trophic level.
10
The diagram shows a basic food chain.
https://media.edgenuity.com/evresources/8306/8306-09/8306-09-03/8306-09-03-assessment/8306-09-03-11.PNG
Which is the primary consumer?
Rabbit
Nida draws a diagram with insects, birds, and mice. She shows the mice eating grass; hawks, snakes, and toads eating the insects; and foxes, hawks, and snakes eating the birds and mice. The snakes are also eating the toads.
Which best describes the diagram?
Food web
The diagram shows a food web.
https://media.edgenuity.com/evresources/8306/8306-09/8306-09-03/8306-09-03-assessment/8306-09-03-17.PNG
Which is the producer?
Grass
Yellowfin tuna are large 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 searching for food around the structures.
Which trophic level in an energy pyramid do yellowfin tuna fill?
Secondary Consumer
