Jeremiah Studies Algebra Every Day Because He Is Motivated to Get

question 372

Multiple Choice

Jeremiah studies algebra every day because he is motivated to get an A grade at the end of the semester.In this case,the A grade is a(n)

• A) primary reinforcer.
• B) unconditioned stimulus.
• C) delayed reinforcer.
• D) negative reinforcer.

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Definitions:

Fluid

In a physical context, a substance that has no fixed shape and yields easily to external pressure; in a cognitive context, it refers to the capacity to think abstractly and reason adaptively.

Ectoderm

The outermost layer of cells or tissue of an embryo in early development, giving rise to the nervous system and the epidermis, among other structures.

Mesoderm

The middle layer of an embryo in early development, giving rise to the musculoskeletal, vascular, and urogenital systems.

Trophoblast

The outer layer of cells surrounding a blastocyst in early pregnancy, which provides nutrients to the embryo and develops into part of the placenta.