Productivity Is the Amount of Carbon Fixed by Organisms Through

question 27

Multiple Choice

Productivity is the amount of carbon fixed by organisms through the synthesis of organic matter using energy derived from_______ and _______ .

• A) photosynthesis; hydrothermal
• B) hydrothermal; available nutrients
• C) chemosynthesis; photosynthesis
• D) chemosynthesis; hydrothermal
• E) none of these

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Definitions:

Alkyllithium

A class of organolithium compounds characterized by a direct bond between a lithium atom and a carbon atom in an alkyl group.

Acetic Acid

A simple carboxylic acid recognized as the main component of vinegar apart from water, with the formula CH3COOH.

2-Butanone

An organic compound, also known as methyl ethyl ketone, with the formula CH3COC2H5, used as a solvent.

Acid Chloride

A class of organic compounds derived from acids by replacing a hydroxyl group with a chlorine atom, often used as intermediates in synthesis.