B7- Ecology

• What is homeostasis?

  The regulation of conditions inside the body to maintain a stable internal environment in response to both internal and external conditions
• Why is homeostasis important?

  Stability. Cells need the right conditions in order to function properly
• What are 3 main components which work together to maintain a steady condition?

  Receptors, coordination centres , effectors
• What is automatic control?

  Recognising change from optimal conditions and send a signal to reverse change
• What is the function of receptors?

  To detect change for example a rise in temperature
• What is then function of coordination centers?

  Interpret that change (what needs to be done?) for example brain, spinal cord
• What is the function of effectors?

  Carry out change for example muscles or glands (release hormones)
• What is negative feedback?

  Regulation, opposite to change to bring it back to optimal levels.