A Lichen Is a Commensalistic Relationship Between a Fungus and an Alga

question 40

True/False

A lichen is a commensalistic relationship between a fungus and an alga.

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Definitions:

DRL Schedule

A type of reinforcement schedule where a response is only reinforced if it occurs after a specified amount of time has passed since the last reinforced response.

Reinforcement

In behaviorism, a stimulus or event that follows a behavior and increases the likelihood of that behavior's recurrence.

Variable-ratio

A schedule of reinforcement where a response is reinforced after an unpredictable number of responses, making it highly resistant to extinction.

Reinforcement

An operational technique used in behavior analysis to increase the frequency of a desired behavior by introducing a motivating item after the behavior is exhibited.