The Outer Cell Layer of the Blastocyst Becomes the

question 121

Multiple Choice

The outer cell layer of the blastocyst becomes the , which forms the embryonic portion of the placenta.

• A) primitive streak
• B) chorion
• C) inner cell mass
• D) yolk sac
• E) embryonic disk

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Definitions:

Variable Interval

A reinforcement schedule where a response is rewarded after a variable and unpredictable time period has elapsed.

Fixed-interval Schedule

A timing-based reinforcement scheme where a specific time interval must elapse before a response is rewarded.

Reinforcement

In behavioral psychology, it refers to a process that increases the likelihood of a behavior by adding or removing a stimulus following the behavior.

Randomly Varying

Characterized by changes or differences that occur in a random manner, not following any specific pattern or prediction.