3.6.4.1 principles and negative feedback

• Homeostasis: The maintenance of a constant internal environment in organisms
• Negative feedback: Returns a factor back to the set point after it has deviated from that set point
• Positive feedback: Factor deviates from a set point them deviates further from that point
• What are the advantages to mammals/birds being able to control their internal environments?

  They are independent of their external environment - they can survive in many environments