Trophic Levels and Food Webs

Question 1

Which class of organisms gather their energy directly from the sun?a.autotrophsb.carnivoresc.herbivoresd.detritivores

Revolt · Accepted Answer

A

Question 2

Scientists use different types of models to analyze the structure of ecosystems. Which characteristic is seen in a biomass pyramid, but not in a numbers pyramid?

Revolt · Accepted Answer

living matter found at each trophic level in an ecosystem

Question 3

A quaternary consumer species would be expected to have a smaller population than a secondary consumer species.

Revolt · Accepted Answer

T

Question 4

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

Revolt · Accepted Answer

A

Question 5

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

Revolt · Accepted Answer

C

Question 6

Which is not an advantage of using the Pyramid of Energy?a.It takes into account the rate of production over a period of time.b.Assigning the decomposers and detritivores to a particular trophic level.c.There are no inverted pyramids.d.The input of solar energy can be added.

Revolt · Accepted Answer

B

Question 7

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

Revolt · Accepted Answer

D

Question 8

The initial period of population growth for a species in an environment is _______. a. linear b. exponential c. slow d. negative Please select the best answer from the choices provided

Revolt · Accepted Answer

B

Question 9

Which shows the correct order of increasing trophic level, from producer to tertiary consumer?

Revolt · Accepted Answer

grass, deer, wolf, fungi

Question 10

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

Revolt · Accepted Answer

F

Trophic Levels and Food Webs Answers

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