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

question 59

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 Ocean (Antarctic Ocean) productivity from year to year to see if it changes.
• C) experimentally enrich some areas of the ocean and compare their productivity to that of untreated areas.
• D) compare nutrient concentrations between the photic zone and the benthic zone in various marine locations.
• E) contrast nutrient uptake by autotrophs in marine locations that are different temperatures.

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