Answers created by Fenix

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• Explain why the blood in the hepatic portal vein is deoxygenated rather than oxygenated?
  
• Two primary agents of cellular communication are?Explain your answer. A)chemicals made by blood cells and simple sugar. B)hormones and carbohydrates. C)enzymes and starches. D)hormones and chemicals by nerve
  
• How do you graph #f(x) =abs(x)-2#?
  
• How do you solve #n/4 - 4 = 0#?