Answers edited by josef

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• Why is the epidermis waterproof?
  
• What veins carry oxygenated blood?
  
• What is the function of cilia and mucus in the trachea, bronchi, and bronchioles?
  
• Question #c6b8a
  
• How does aging effect the male reproductive system?
  
• Is blood type O negative the inferior blood type?
  
• If a fertilized egg cannot reach the uterus, what is the most likely result?
  
• How resilient is the human body?
  
• Question #4a85a
  
• What are symptoms of liver damage?
  
• My FEV lung function is 70%. I am 34 years old and I have smoked for 20 years. If I stop smoking now, can COPD be reversed?
  
• What is carbon monoxide poisoning? A friend of mine has this. Can it be treated if it is caught in time? What are the risks?
  
• Where is the deltoid region of the body located? Where is the patellar region?
  
• Why can you get pregnant during your period?
  
• Does the muscular system have any organs?
  
• How can you lower potassium in the blood?