The Specific Relationship Between a Legume and Its Mutualistic Rhizobium

question 21

Multiple Choice

The specific relationship between a legume and its mutualistic Rhizobium strain probably depends on

• A) each legume having a chemical dialogue with a fungus.
• B) each Rhizobium strain having a form of nitrogenase that works only in the appropriate legume host.
• C) each legume being found where the soil has only the Rhizobium specific to that legume.
• D) specific recognition between the chemical signals and signal receptors of the Rhizobium strain and legume species.
• E) destruction of all incompatible Rhizobium strains by enzymes secreted from the legume's roots.

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Definitions:

Unit Product Cost

The total expense involved in manufacturing a single product unit, encompassing direct materials, direct labor, and apportioned overhead costs.

Variable Costing

An accounting method that includes only variable production costs (direct labor, direct materials, and variable overhead) in product costs and expenses fixed overhead as a period cost.

Unit Product Cost

The total cost, including materials, labor, and overhead expenses, divided by the total number of units produced.

Absorption Costing

Absorption costing is a method in accounting that includes all manufacturing costs - both direct and indirect - in the cost of a product.