Which of the following plants stand intermediate between `C_3` and `C_4` plants

Options

A. Triticum aestivum
B. Zea mays
C. Panicum miliolids
D. All the above

Explanation

To determine which plant stands intermediate between C3 and C4 plants, we can follow these steps:

### Step-by-Step Solution:

1. **Understand C3 and C4 Plants**:
- C3 plants primarily use the Calvin cycle for photosynthesis and have a three-carbon compound (3-PGA) as the first stable product. They are typically found in cooler, wetter climates.
- C4 plants have a modified pathway that allows them to efficiently fix carbon dioxide in hot and dry environments. They produce a four-carbon compound (oxaloacetate) as the first stable product.

2. **Identify the Plants in the Question**:
- The options given are:
- Triticum aestivum (wheat)
- G maize (corn)
- Panicum milio lids (a type of grass)

3. **Analyze Each Plant**:
- **Triticum aestivum**: This is a C3 plant. It does not exhibit characteristics of C4 plants.
- **G maize (Zea mays)**: This is a C4 plant, known for its efficiency in photosynthesis under high light and temperature conditions.
- **Panicum milio lids**: This plant exhibits characteristics that are intermediate between C3 and C4 plants. It has C4-like anatomical features but can also perform C3 photosynthesis.

4. **Conclusion**:
- Among the options provided, **Panicum milio lids** is the plant that stands intermediate between C3 and C4 plants due to its unique anatomical and physiological characteristics.

### Final Answer:
The plant that stands intermediate between C3 and C4 plants is **Panicum milio lids**.

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