Design an Enrichment Strategy for the Isolation of a Heterotrophic

question 6

Essay

Design an enrichment strategy for the isolation of a heterotrophic sulfate-reducer that could help clean up the oil spill in the sediments of the Gulf of Mexico.

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Definitions:

Sensitization

Sensitization is an increase in the behavioral response following repeated exposure to a stimulus, making an organism more sensitive to that stimulus over time.

Behavioral Contrast

occurs when a change in the condition of reinforcement in one context leads to a change in behavior in another context.

Higher-order Conditioning

A form of conditioning in which a stimulus that has become a conditioned stimulus is paired with a new neutral stimulus, creating a second conditioned stimulus.

Opponent Process

A theory suggesting that emotions are regulated by mechanisms that operate in opposing pairs, allowing for emotional adaptation over time.