Energy Flow in Ecosystems

Question 1

Which organisms obtain energy from dead or decaying matter? Select two options. groundhogsdaisiesearthwormsbacteriahumansphytoplankton

Revolt · Accepted Answer

earthworms; bacteria

Question 2

Which of these is a producer?

Revolt · Accepted Answer

fern

Question 3

The organisms in a food chain are listed in order of trophic level from left to right.Based on the food chain, if a hawk acquires 50 calories of energy, how much energy did the grasshopper get from the plant?

Revolt · Accepted Answer

50,000 calories

Question 4

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 5

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 6

Which represents the amount of potential food available at each trophic level?

Revolt · Accepted Answer

biomass pyramid

Question 7

The diagram shows a food web.

Revolt · Accepted Answer

The entire food web would be affected.

Energy Flow in Ecosystems Answers

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