What Is True About the Sulfur Cycle

question 51

Multiple Choice

What is true about the sulfur cycle?

• A)H₂S is the oxidized form of sulfur.
• B)Green and purple photosynthesizing bacteria oxidize H₂S.
• C)Sulfates are utilized to become part of the carbohydrate molecules.
• D)H₂S represents a source of energy for some autotrophic bacteria.
• E)Both green and purple photosynthesizing bacteria oxidize H₂S and H₂S represents a source of energy for some autotrophic bacteria.

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Definitions:

Regression Trend Line

is a statistical tool used in scatter plots to determine the relationship between two variables by drawing a straight line that best fits the data points.

Dependent Variable

The outcome variable in an experiment or study whose changes are determined by the presence or variation of one or more independent variables.

Linear Trend Model

A statistical model that attempts to describe a linear relationship between two or more variables using a straight line.

Quadratic Trend Model

A model used in time series analysis that represents data with a parabolic trend, implying that the rate of change is not constant but accelerates or decelerates over time.