Energy Flow in Ecosystems

Question 1

The diagram shows a food web.

Revolt · Accepted Answer

grass

Question 2

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?

Revolt · Accepted Answer

secondary consumer

Question 3

Which statement best contrasts food chains and food webs?

Revolt · Accepted Answer

Food chains show a single path of energy in an ecosystem, and food webs show all the overlapping food chains in that ecosystem.

Question 4

The diagram shows a food web.

Revolt · Accepted Answer

The entire food web would be affected.

Question 5

Which of these is a heterotroph?

Revolt · Accepted Answer

consumer

Question 6

In an ecosystem, a deer consumes grass. What percentage of energy will the deer acquire from the grass?

Revolt · Accepted Answer

10%

Question 7

In order to support all of the organisms in an ecosystem, which should have the greatest amount of biomass?

Revolt · Accepted Answer

producers

Question 8

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?

Revolt · Accepted Answer

food web

Question 9

Which process is used by most producers to turn sunlight into food energy?

Revolt · Accepted Answer

photosynthesis

Energy Flow in Ecosystems Answers

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