As Big as It Is,the Ocean Is Nutrient-Limited

question 83

Multiple Choice

As big as it is,the ocean is nutrient-limited.If you wanted to investigate this,one reasonable approach would be to

• A)follow whale migrations in order to determine where most nutrients are located.
• B)observe Southern/Antarctic Ocean productivity from year to year to see if it changes.
• C)enrich some areas of the ocean,and compare their productivity to that of untreated areas.
• D)compare nutrient concentrations between photosynthetic and non-photosynthetic zones.
• E)contrast nutrient uptake by autotrophs in marine locations with different temperatures.

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