This Type of Early Cell Line Is the Precursor to the Cells

question 47

Multiple Choice

This type of early cell line is the precursor to the cells that will compose the nervous system.

• A)blastula
• B)gastrula
• C)endoderm
• D)ectoderm

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Definitions:

Unconditioned Stimulus

A stimulus that naturally and automatically triggers a response without any need for prior learning.

Reflexive Stimulus

A stimulus that automatically elicits a reflex action, such as pulling your hand away from a hot surface without thinking.

Conditioned Stimulus

An initially neutral cue that becomes capable of provoking a conditioned response after being linked with an unconditioned stimulus.

UCS

An acronym for Unconditioned Stimulus, a stimulus that naturally and automatically triggers a reflexive response without prior learning.