In This Diagram of the Heart, a Is the ____

question 14

Multiple Choice

In this diagram of the heart, A is the ____ and B is the ____.

• A) AV node; cardiac pacemaker
• B) SA node; septum
• C) AV node; SA node
• D) SA node; AV node
• E) septum; cardiac pacemaker

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Definitions:

Variable-interval Schedule

A schedule of reinforcement where a response is rewarded after an unpredictable amount of time has passed, contributing to a steady, stable rate of response.

Specific Number

An exact quantity or value, often mentioned to denote precision or to highlight importance within a particular context.

Randomly Varying

Characterized by changes that do not follow a predictable pattern and occur in a random manner.

Reinforcement

In behaviorism, a consequence that increases the likelihood of a behavior being repeated.