题目内容

In a terrestrial ecosystem, the trophic level that would contain the largest biomass would be the

A. decomposers
B. producers
C. consumers
D. secondary consumers
E. tertiary consumers

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This data demonstrates that

A. Daphnia don't need a specific pH to survive
B. Daphnia can tolerate a large range of pH
C. Daphnia prefer a more acidic pH
Daphnia prefer a slightly basic pH
E. Daphnia prefer a strongly basic pH

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Use the data to predict the pH in which Daphnia can be found in the wild?

A. 1
B. 3
C. 5
D. 7
E. 9

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At what pH would 50% of Daphnia survive after 2 hours?

A. 2.5
B. 3.5
C. 4.5
D. 7.5
E. 8.5

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Farm raised salmon

A. are more genetically diverse than wild salmon
B. rarely escape from their holding pens
C. increase the water quality in the area in which they are raised
D. are often infected with parasites and sea lice
E. are kept at lower population densities than wild salmon

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In a terrestrial ecosystem, the trophic level that would contain the largest biomass would be the

A. decomposers B. producers C. consumers D. secondary consumers E. tertiary consumers

This data demonstrates that

Use the data to predict the pH in which Daphnia can be found in the wild?

At what pH would 50% of Daphnia survive after 2 hours?

Farm raised salmon

A. decomposers
B. producers
C. consumers
D. secondary consumers
E. tertiary consumers