Which of the Following Is a True Statement About Nitrogen

question 40

Multiple Choice

Which of the following is a true statement about nitrogen fixation in root nodules?

• A) The plant contributes the nitrogenase enzyme.
• B) The process is relatively inexpensive in terms of ATP costs.
• C) Leghemoglobin helps maintain a low O₂ concentration within the nodule.
• D) The process tends to deplete nitrogen compounds in the soil.
• E) The bacteria of the nodule are autotrophic.

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Definitions:

Simple Random Sample

A sample drawn in such a way that every member of the population has an equal chance of being selected.

Degrees Of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution, often related to the number of values in the final calculation of a statistic that are free to vary.

One-sample T Test

A statistical test used to compare the mean of a sample to a known value or theoretical expectation when the population variance is unknown.

Null Hypothesis

A hypothesis stating no significant relationship or correlation between variables, serving as the base assumption to be tested against in research.