Macroscopic Algae Possess a Special Structure That Acts as an Anchor

question 15

Multiple Choice

Macroscopic algae possess a special structure that acts as an anchor and is commonly called

• A)a thallus.
• B)a holdfast.
• C)roots.
• D)the stipe.

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Definitions:

Conditioned Stimulus

A conditioned stimulus is a previously neutral stimulus that, after association with an unconditioned stimulus, comes to elicit a conditioned response.

Salivates

The process of producing saliva, a digestive fluid, in response to the presence of food or the anticipation of eating.

Conditioned Stimulus

A previously neutral stimulus that, after becoming associated with an unconditioned stimulus, eventually comes to trigger a conditioned response in a subject.

Operant Stimulus

A stimulus that follows a behavior and increases the likelihood that the behavior will be repeated.