Reduced second cotyledon in some grasses is known as

Options

A. Nucellus
B. Epiblast
C. Scutellum
D. Epicotyl

Answer

To answer the question regarding the reduced second cotyledon in some grasses, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Cotyledons**: Cotyledons are the first leaves that appear from a seed during germination. In flowering plants, they can be classified as either monocotyledons (monocots) or dicotyledons (dicots). Monocots typically have one cotyledon, while dicots have two.

2. **Identifying the Structure in Monocots**: In monocots, such as grasses, the main cotyledon is referred to as the scutellum. This is the primary structure that provides nutrients to the developing plant.

3. **Recognizing the Reduced Cotyledon**: In some grasses, there is a second cotyledon that is either very small or not fully developed. This reduced cotyledon is known as the epiblast.

4. **Evaluating the Options**: The question provides multiple-choice options:
- A) Nucillus
- B) Epiblast
- C) Scutellum
- D) Epicotyle

5. **Analyzing Each Option**:
- **Nucillus**: Incorrect, as it refers to the embryo within the ovule, not a cotyledon.
- **Epiblast**: Correct, as it is the term used for the reduced second cotyledon in some grasses.
- **Scutellum**: Incorrect, as this is the name for the main cotyledon in monocots.
- **Epicotyle**: Incorrect, as it refers to the part of the stem above the cotyledons, not a cotyledon itself.

6. **Conclusion**: The correct answer to the question is **Epiblast**.

### Final Answer:
The reduced second cotyledon in some grasses is known as **Epiblast**.