The Availability of Oxygen and Other Electron Acceptors Is the Most

question 49

Multiple Choice

The availability of oxygen and other electron acceptors is the most important determinant of the types of metabolism in a habitat. Which of the following is NOT true about anaerobic environments?

• A) They have slower rates of assimilation compared to aerobic habitats.
• B) Their rates of dissimilation are slower compared to aerobic environments.
• C) Microbes sometimes use minerals such as NO₂- to oxidize organic compounds.
• D) Anaerobic microbial biomass far exceeds that of the oxygenated biosphere.
• E) Respiration of organic compounds is highly dissimilatory, reducing them to CO₂.

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Definitions:

Group Being Studied

The specific collection of subjects or participants who are observed or experimented on in a research study.

Naturalistic Observation

Naturalistic Observation is a research method in which subjects are observed in their natural environment without any manipulation by the researcher.

Exact Descriptions

Involves providing detailed and precise details or accounts of something.

Correlation

A statistical measure that indicates the extent to which two or more variables fluctuate together; a positive correlation means they increase or decrease together, while a negative correlation means one increases as the other decreases.