A Primitive Streak Appears During Gastrulation of

question 51

Multiple Choice

A primitive streak appears during gastrulation of

• A)sea stars and humans.
• B)birds and reptiles.
• C)nemerteans.
• D)only mammals.

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Definitions:

Operant Conditioning

A learning process through which the strength of a behavior is modified by reward or punishment.

Pigeons

Birds that are often used in research studies, particularly in experiments related to learning, memory, and navigation.

Mechanisms of Learning

The processes and techniques through which individuals acquire new knowledge, behaviors, attitudes, or skills.

Variable-Interval Schedule

A reinforcement schedule in operant conditioning where a response is rewarded after an unpredictable amount of time has passed.