Hair present on the cob of corn are
Or
Long filamentous threads protruding at the end of young cob of maize are

Options

A. ovaries
B. hairs
C. anthers
D. styles

Answer

To answer the question about the hair present on the cob of corn or the long filamentous threads protruding at the end of the young cob of maize, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Plant Structure**: The question refers to the cob of corn, which is the reproductive structure of the maize plant (Zea mays).

2. **Examine the Appearance**: The hair-like structures that protrude from the cob are typically long, silky, and golden in color.

3. **Understand the Function**: These structures are not just random hairs; they play a crucial role in reproduction. They are part of the female reproductive system of the maize plant.

4. **Define the Structures**: In flowering plants, the female reproductive part consists of the ovary, style, and stigma. In maize, each ovary has a long, silky structure known as the style.

5. **Name the Specific Structure**: The long filamentous threads that you see protruding from the cob are specifically called "corn silk." Each strand of corn silk corresponds to an ovule in the ovary.

6. **Conclusion**: Therefore, the hair present on the cob of corn, or the long filamentous threads protruding at the end of the young cob of maize, are referred to as "corn silk," which are the styles of the ovaries.

### Final Answer:
The hair present on the cob of corn are called "corn silk," which are the styles of the ovaries.

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