Cb2 a and b and c

• Nerve cells have structures (cilia) which are ciliated and covered in dirt and mucus
• Specialized cells found in the nose and throat are ciliated and covered in dirt and mucus
• Impulses in nerve cells are electrical and can be measured
• Plants have specialized structures like root hair cells with a large surface area to absorb water
• Mitosis is a process where cells divide to form two new daughter cells, each identical to the parent cell