(i)Draw a neat and labelled diagram of hair.
(ii) Based on the diagram drawn above in (i), give a suitable term for each of the following descriptions:
1. Name the gland that secretes the oily, waxy substance called sebum.
2. A muscle causing the hair to stand up straight (goose bumps).
3. Protein present in this structure.
4. Cell divides rapidly and is responsible for the growth of the existing hair.
5. The pigment responsible for the colour of the skin.
6. Dead, keratinized superficial portion of the hair.
7. Small tube of cells that extends into the dermis region of skin.

Explanation

### Step-by-Step Solution

#### (i) Draw a Neat and Labelled Diagram of Hair

1. **Start with the Hair Shaft**: Draw a long, thin structure that represents the hair shaft, which is the visible part of the hair above the skin.

2. **Add the Hair Follicle**: Below the hair shaft, draw a small tube-like structure that extends into the skin. This is the hair follicle.

...