When Pavlov Placed Meat Powder in the Mouths of Canine

question 248

Multiple Choice

When Pavlov placed meat powder in the mouths of canine subjects, they began to salivate. The food acted as a/an:

• A) unconditioned stimulus.
• B) successive approximation.
• C) extrinsic reinforcer.
• D) secondary reinforcer.

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Definitions:

Duplicated Chromosome

A chromosome that has undergone replication resulting in two identical copies joined together, important for cell division.

Chromatid

A chromatid is one of two identical halves of a replicated chromosome, which are joined at their centromeres, before being separated during cell division.

Early Prophase

The initial phase of mitosis or meiosis when chromosomes begin to condense and the nuclear envelope starts to break down.

Metaphase

Stage of mitosis at which all chromosomes are aligned midway between spindle poles.