Dr Everett Is Observing Robert in a Sleep Lab

question 68

Multiple Choice

Dr. Everett is observing Robert in a sleep lab. Dr. Everett intends to wake Robert up each time he begins REM sleep. Based on the electroencephalograph (EEG) recordings, Robert should be awakened each time the EEG shows ​

• A)alpha-wave activity.
• B)low-voltage, high-frequency beta waves. ​
• C)the presence of sleep spindles. ​
• D)theta-wave activity. ​

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Definitions:

Savanna

A grassland ecosystem characterized by the trees being sufficiently small or widely spaced so that the canopy does not close, allowing sunlight to reach the ground and support an underlayer of grass.

Nekton

Aquatic animals that are able to swim and move independently of water currents, such as fish, whales, and squid.

Bottom-dwelling Organisms

Refers to organisms that live on or near the bottom of bodies of water.

Ecotone

A transitional zone between two different ecosystems or biomes, often rich in species diversity.