To Enhance Colonization by Nitrogen Fixers, Farmers Apply Attractants for Rhizobia

question 46

Multiple Choice

To enhance colonization by nitrogen fixers, farmers apply attractants for rhizobia called:

• A) nitrogenases
• B) leghemoglobins
• C) hormones
• D) isoflavonoids
• E) heterocysts

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Definitions:

Border Slave States

The U.S. states located along the border between the northern states, where slavery was illegal, and the southern states, where slavery was legal, prior to and during the Civil War.

Unconstitutional

A term describing any law, decree, or government action that violates the constitution.