A Pearson Correlation of R = +0

question 31

Multiple Choice

A Pearson correlation of r = +0.9 indicates that a graph of the data would show

• A)points clustered close to a line that slopes up to the right.
• B)points clustered close to a line that slopes down to the right.
• C)points widely scattered around a line that slopes up to the right.
• D)points widely scattered around a line that slopes down to the right.

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Definitions:

Saprotrophs

Organisms that feed on or derive nourishment from decaying organic matter, playing a vital role in decomposition and nutrient cycling.

Microbial Heterotrophs

Microorganisms that obtain their energy by consuming organic matter, as opposed to producing it themselves.

Pyramids of Numbers

A graphical representation showing the number of organisms at each trophic level in an ecosystem.

Biomass

The total mass of organisms within a given area or ecosystem at a given time, often used as an energy resource.