The Cyanobacterium Trichodesmium ______

question 4

Multiple Choice

The cyanobacterium Trichodesmium ______.

• A)fixes N₂ during the day
• B)fixes a significant amount of N₂ in oceanic environments
• C)uses nitrite as a source of nitrogen
• D)is a spherical organism

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Definitions:

Dissolve

The process by which a substance integrates into a liquid, resulting in a homogeneous mixture or solution.

Water Scarcity

The situation where the available supply of freshwater within a region fails to meet the demand.

Infrastructure

The fundamental facilities and systems serving a country, city, or area, including transportation and communication systems, water and power lines, and public institutions like schools, post offices, and prisons.

Aquifer

An underground layer of water-bearing permeable rock, rock fractures, or unconsolidated materials from which groundwater can be extracted using a water well.