The Precursor Cell,or Stem Cell,that Gives Rise to All Types

question 72

Multiple Choice

The precursor cell,or stem cell,that gives rise to all types of blood cells is the

• A) reticulocyte
• B) hemocytoblast
• C) thromboblast
• D) megakaryocyte
• E) erythroblast

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Definitions:

Shaping

A method of behavior training in which reinforcement is given for progressively closer approximations of the desired behavior.

Classically Conditioned

A learning process that occurs through associations between an environmental stimulus and a naturally occurring stimulus.

Extinction

In behavioral psychology, the process of diminishing a conditioned response by repeatedly presenting the conditioned stimulus without the unconditioned stimulus.

Conditioned Response

A learned response to a previously neutral stimulus that has become associated with an unconditioned stimulus through classical conditioning.