Gas Exchange Structures of Some Marine Annelids Are Lateral Projections

question 36

Multiple Choice

Gas exchange structures of some marine annelids are lateral projections called

• A)brachial gills.
• B)tracheae.
• C)skin gills.
• D)compact gills.
• E)parapodia.

---

Definitions:

Norepinephrine

A neurotransmitter whose action is similar to that of the hormone epinephrine and that may play a role in depression.

Successive Approximations

In operant conditioning, a series of behaviors that gradually become more similar to a target behavior.

Target Behavior

A specific behavior that is selected for change or intervention in a behavior modification program.

Systematic Desensitization

A behavioral therapy method used to gradually reduce anxiety by having the patient imagine a hierarchy of fears while practicing relaxation techniques.