External Respiration Is the

question 59

Multiple Choice

External respiration is the

• A) breathing of air from the atmosphere
• B) exchange of gases between the alveoli and blood
• C) mixing of gases in the upper respiratory tract
• D) incorporation of air through the skin
• E) breathing of air through the mouth

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Definitions:

Intervening Variables

Factors within a study that mediate the relationship between the independent and dependent variables, potentially influencing the outcome.

UCS

Unconditioned Stimulus, a stimulus that naturally and automatically triggers a physiological reflex or emotional response without prior learning.

UCR

Unconditioned response, a natural and automatic reaction to an unconditioned stimulus without prior learning or conditioning.

CS

Short for Conditioned Stimulus, it is a term used in classical conditioning to denote a previously neutral stimulus that, after becoming associated with the unconditioned stimulus, eventually triggers a conditioned response.