Define and explain all three of the following concepts: homeostasis, “set point theory,” and settling point theory.Explain the similarities between homeostasis and “set point theory.” Explain

• Define and explain all three of the following concepts: homeostasis, “set point theory,” and settling point theory.
• Explain the similarities between homeostasis and “set point theory.”  Explain any differences between homeostasis and “set point theory.”
• Explain how settling point theory is different from both homeostasis and “set point theory.” Why did scientists believe that these factors or mechanisms controlled the body weight of adults in the past?

Write a 500 word paper to address the questions above.  You are required to cite your sources in the body of your text properly, include a reference page, and use APA style.