Vesicles and Arbuscules Are Structures Typically Formed ____

question 23

Multiple Choice

Vesicles and arbuscules are structures typically formed ____.

• A)in bacterial cells when attacked by protozoa
• B)above ground by certain soil fungi
• C)by mesofauna when they incorporate organic materials into the soil
• D)in root cells by fungi when they form mycorrhizae
• E)none of the above

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Definitions:

Probability Distribution

A mathematical description that assigns probabilities to different outcomes of a random variable.

Chi-Square Distribution

The Chi-Square Distribution is a statistical distribution used for hypothesis testing and is derived from the sum of the squares of a set of normally distributed random variables.

Degrees of Freedom

The number of values in the final calculation of a statistic that are free to vary.

Qualitative Variables

Variables that express qualitative attributes and differentiate by category, not in numerical terms.