Which Statement Exemplifies the Biological Pump Concept

question 79

Multiple Choice

Which statement exemplifies the biological pump concept?

• A) Autotrophs bring in light photons to synthesize ATP.
• B) Bacteria oxidize Fe²⁺ into Fe³⁺, and Archaea reduce Fe³⁺ back into Fe²⁺.
• C) Calcium ions are brought into cells while toxic physiological by-products are released.
• D) Primary producers sink to the deep ocean, which provides deep ocean organisms with nutrients when the primary producers die.

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Definitions:

Appraised Value

An estimation of the value of property, typically real estate, as determined by a professional appraiser based on market conditions and property characteristics.

Equity Income

Income that comes from stock dividends or the sale of shares, reflecting earnings from investment in equity securities.

Straight-Line Basis

An accounting method used for calculating depreciation by evenly dividing an asset's value over its expected lifespan.

Goodwill

An intangible asset that represents the excess value of an acquired company over the fair value of its identifiable assets and liabilities, often related to brand reputation or customer relationships.