All of the Following Are Characteristics of Viruses Except

question 19

Multiple Choice

All of the following are characteristics of viruses except

• A)they can be crystallized.
• B)they often have a geometric capsid.
• C)they have a viscous fluid inside their capsids.
• D)they can cause fatal diseases.
• E)they can cause mild diseases.

---

Definitions:

Stage 4 Sleep

Stage 4 Sleep, also known as delta sleep or deep sleep, is a stage of sleep characterized by slow brainwaves and minimal body activity, where restorative and growth processes occur.

REM Behavior Disorder

A rare disorder in which the mechanism that blocks the movement of the voluntary muscles fails, allowing the person to thrash around and even get up and act out nightmares.

EEG Record

A graphical record of electrical activity in the brain, measured by electrodes placed on the scalp, used in diagnosing neurological conditions and in neuroscience research.

Sleepwalking

Sleepwalking is a sleep disorder causing people to get up and walk while in a state of sleep, often having no memory of the activity.