Characteristics of Birds Include All of the Following EXCEPT

question 15

Multiple Choice

Characteristics of birds include all of the following EXCEPT

• A)aquatic reproduction.
• B)endotherms.
• C)modified reptilian scales as feathers.
• D)hard-shelled eggs.
• E)a modified skeleton with a fused collarbone and a keel.

---

Definitions:

Norepinephrine

A neurotransmitter whose abnormal activity is linked to panic disorder and depression.

Unipolar Depression

A major depressive disorder characterized by a persistent feeling of sadness or lack of interest in external stimuli.

Drug Therapy

The use of psychotropic drugs to reduce the symptoms of psychological disorders.

Brain Stimulation

Interventions that directly or indirectly stimulate the brain in order to bring about psychological improvement.