When Keller and Marian Breland, Two Psychologists Who Became Animal

question 26

Multiple Choice

When Keller and Marian Breland, two psychologists who became animal trainers, decided that it would be cute to have a pig drop a big wooden coin into a box, they found that:

• A) food was not an effective reinforcer for the pig and so learning didn't occur.
• B) when given edible roots as reinforcers, the pig learned the task in fewer than 10 trials.
• C) the pig was difficult to train because it kept dropping the coin, rooting, and throwing the coin in the air.
• D) the pig showed intrinsic interest in the task and so reinforcement was unnecessary.

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Definitions:

Double Covalent Bonds

Chemical bonds involving the sharing of two pairs of electrons between atoms, contributing to the molecule's stability.

Fat Soluble Vitamins

Vitamins that can be dissolved in fats and oils, stored in the body's fatty tissue, and include vitamins A, D, E, and K.

Toxic

Describes substances that are harmful or deadly to living organisms, potentially causing damage through chemical reactions or other pathways when ingested, inhaled, or absorbed.

Essential Amino Acids

Amino acids that the body cannot synthesize on its own and must be obtained through the diet.