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.
Answer:
Pubic Lice and Scabies are different than previously mentioned STDs in that they are caused by an infestation of small bugs rather than by bacteria. Pubic lice are six-legged creatures known in the scientific world as Phthirus Pubis and more commonly as "crabs".
Explanation:
hope that helps you. :)
The Thalamus acts as a relay station in the brain!
This varies from person to person. There is a point in time at which hormones in a persons body begin to loose their effective functions, a period I have heard reffered to as adult puberty. In women this is marked by menopause. While you can still theoretically maintain a healthy body at this time, it becomes increasingly difficult. Maintaining a healthy diet and constant exercise are essential to achieving this. A doctor won't tell you much more than this.
B. Protective Factors
I would say that the answer is B because when your life is in risk, you need someone with you to stay and make sure everything is okay.
