A Swimmer Cannot Use a Long Hose to Snorkel More

question 17

Multiple Choice

A swimmer cannot use a long hose to snorkel more than a meter deep because air

• A) in the lungs cannot easily be expelled.
• B) is buoyed up leaving the swimmer breathless.
• C) tends to liquify in the snorkel tube.
• D) at the surface will not freely enter the higher-pressure region in the compressed lungs.
• E) all of these

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Definitions:

Thalamus

A major relay station in the brain that processes and directs sensory information to appropriate areas of the cortex.

Limbic System

The limbic system is a complex set of structures in the brain involved in emotion, behavior, and memory processing.

Chemical Sense

Refers to the sensory systems that allow organisms to perceive the chemical composition of their environment, primarily taste and smell.

Taste

The sensation produced when a substance in the mouth reacts chemically with taste receptor cells located on taste buds.