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Currently, two of the living elephant species (X and Y) are placed in the genus Loxodonta, and a third surviving species (Z) is placed in the genus Elephas. Assuming this classification reflects evolutionary relatedness, which of the following is the most accurate phylogenetic tree?
Conditioned Stimulus
A previously neutral stimulus that, after being associated with an unconditioned stimulus, elicits a conditioned response.
Operant-Conditioning
A method of learning that occurs through rewards and punishments for behavior, encouraging the subject to associate certain behaviors with specific consequences.
Successive Approximations
In the operant-conditioning procedure of shaping, behaviors that are ordered in terms of increasing similarity or closeness to the desired response.
Neutral Stimulus
A stimulus that initially produces no specific response other than focusing attention, until it is paired with an unconditioned stimulus.
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