The Organisms That Obtain Energy by Oxidation of Hydrogen Sulfide

question 49

Multiple Choice

The organisms that obtain energy by oxidation of hydrogen sulfide and use carbon dioxide as a carbon source are called

• A) heterotrophs.
• B) chemolithoautotrophs.
• C) chemoheterotrophs.
• D) autotrophs.
• E) chemoliths.

---

Definitions:

Wilcoxon Rank Sum Test

The Wilcoxon Rank Sum Test is a non-parametric statistical test used to compare two independent samples to assess if their population mean ranks differ.

Population Distributions

Represents the spread of values, or observations, of a particular variable across an entire population.

Nonparametric Tests

Statistical tests that do not assume a specific distribution for the data, used for analyzing ordinal or nominal data with unknown parameters.

Wilcoxon Rank Sum Test

A nonparametric test used to determine whether there is a significant difference between two independent samples by comparing their rank sums.