Which Relationship Is MOST Likely to Be Observed Between Species

question 20

Multiple Choice

Which relationship is MOST likely to be observed between species of different classes?

• A) A deltaproteobacterium oxidizes hydrogen sulfide into sulfate, which is then reduced by an epsilonproteobacterium.
• B) An epsilonbacterium oxidizes the hydrogen sulfide produced by a sulfur-reducing deltaproteobacterium.
• C) A sulfate-reducing epsilonbacterium produces sulfite, which a deltaproteobacterium reduces to hydrogen sulfide.
• D) Syntrophic metabolism of sulfur by a deltaproteobacterium and an epsilonproteobacterium occurs.

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Definitions:

Systematic Risk

The risk inherent to the entire market or market segment, which cannot be mitigated through diversification alone, also known as market risk.

Equilibrium-Price Relationship

The point at which the supply of a good matches its demand, resulting in a stable market price.

Large Position

Holding a significant quantity of a particular stock, bond, or other financial asset, influencing potential risk and return.

Dominance Argument

A concept in portfolio theory suggesting that if one investment dominates another on all measures of performance, it is the preferable choice.