The placenta, the umbilical cord, and the amniotic sac.
<span>An inflammation of the tissue under the foot (fascia) caused by overuse and improper athletic footwear. Characterized by intense start-up pain under the heel bone: plantar fasciitis
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Answer: alternative D.
Explanation: The animals that go through this process understand that everytime they drink the unusual-tasting liquid they will be injected, being that a very unpleasant series of events. They are conditioned, therefore, to be afraid of the unpleasantness of this process by associating pain to the actions that are part of it.
