Trophic Levels and Food Webs

Question 1

Energy flow in an ecosystem is best represented by _______.a.the predator/prey relationshipb.food chainsc.food websd.autotrophs

Revolt · Accepted Answer

C

Question 2

If a predator is eliminated from an ecosystem its prey’s population will likely _______.a.increaseb.decreasec.stay the samed.change, but the direction cannot be predicted

Revolt · Accepted Answer

A

Question 3

It is advantageous for a predator to prey exclusively on a single prey species.

Revolt · Accepted Answer

F

Question 4

Organisms produce their own energy or provide energy for other organisms in a food chain. Many different organisms can be found in the Amazon rainforest in South America. Organisms in this biome include a variety of trees, plants, insects, fish, birds, reptiles, and mammals. The jaguar and anaconda are among the largest predators found in the Amazon. Photo by Trisha M. Shears Photo by US Fish and Wildlife Service Which trophic level do anacondas and jaguars fill in the Amazon rainforest?

Revolt · Accepted Answer

tertiary consumer

Question 5

Which of the following is an autotroph?a.mushroomb.treec.deerd.wolf

Revolt · Accepted Answer

B

Question 6

The elimination of a predator has no negative impacts on that predator’s prey species.

Revolt · Accepted Answer

F

Question 7

Which best describes the trophic level of an organism?

Revolt · Accepted Answer

its position in a food chain

Question 8

The main producers in aquatic environments are _______.a.phytoplanktonb.zooplanktonc.kelpd.fish

Revolt · Accepted Answer

A

Question 9

All animals are _______.a.producersb.omnivoresc.herbivoresd.consumers

Revolt · Accepted Answer

D

Question 10

Which organism gathers its energy directly from the sun?

Revolt · Accepted Answer

a rose plant

Trophic Levels and Food Webs Answers

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