Emily Developed a Fear of Python Snakes After an Accident

question 241

Multiple Choice

Emily developed a fear of python snakes after an accident. Using the principles of classical conditioning, the accident would be considered the unconditioned stimulus. The fact that Emily was fearful of all snakes and not just python snakes demonstrates _________.

• A)backward pairing of the conditioned stimulus and unconditioned stimulus
• B)higher-order conditioning
• C)discrimination
• D)stimulus generalization

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Definitions:

Tiktaalik

An extinct genus of fish-like tetrapods that provides insight into the evolutionary transition from water to land animals.

Synapomorphy

A characteristic or feature that is shared by two or more taxa and is presumed to have been present in their most recent common ancestor, used in establishing evolutionary relationships.

Phylogeny

The study of the evolutionary history and relationships among individuals or groups of organisms.

Veins

Blood vessels that carry deoxygenated blood towards the heart, except for the pulmonary and umbilical veins.