When Legumes with Nitrogen-Fixation Nodules Are Given Chemical Fertilizers with High

question 33

Multiple Choice

When legumes with nitrogen-fixation nodules are given chemical fertilizers with high nitrogen concentrations,they abandon support of the nodules and end the symbiosis.Why?

• A)The mineral nutrients inhibit nitrogenase activity.
• B)Nitrogen gas is no longer available in the soil.
• C)The nitrogen-fixation process is very expensive for the plant.
• D)The dissolved chemical nutrients are toxic to Rhizobium bacteria.
• E)Dissolved nitrogen uncurls the root hairs,releasing the nodulE.

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Definitions:

Income Inequality

The disparate sharing of income between households or individuals within an economic structure.

Highly Educated Workers

Highly educated workers are individuals who have attained a high level of education, often including university degrees, and possess advanced knowledge and skills in their fields.

Median Income

The middle income in a list of incomes, where half of the incomes are higher and half are lower.

Gini Coefficient

A measure of income inequality within a population, ranging from 0 (perfect equality) to 1 (perfect inequality).