Answers created by Shafiyah S.

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• How do neurotransmitters carry a nerve impulse from one cell to another?
  
• What increases the reabsorption of Na+ when stimulated by aldosterone?
  
• Does the epidermis contain root hairs?
  
• Why is the cell membrane called fluid mosaic?
  
• How do you simplify #3x (x -1) - 4 (x^2 - x)#?
  
• What are the differences between Bacteria, Viruses, Fungi and Parasites?
  
• How do the cells communicate between each other?
  
• Question #a0967
  
• Question #a9f1d
  
• How does pollution relate to biological magnification?