Leaf Abscission Is Initiated and Orchestrated by Changing Levels of the Plant

question 7

Multiple Choice

Leaf abscission is initiated and orchestrated by changing levels of the plant hormone ____.

• A) ethylene
• B) cytokinin
• C) auxin
• D) abscisic acid
• E) gibberellin

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Definitions:

Discriminative Operant

A discriminative operant is a behavior influenced by the presence of a specific stimulus, indicating that reinforcement or punishment is available, thus guiding the organism's responses.

Discriminative Stimulus

A stimulus that signals the availability or unavailability of reinforcement or punishment

Generalization Gradients

A depiction of the gradual decrease in the conditioned response as the conditioned stimulus becomes more dissimilar to the original conditioned stimulus.