Pick up the leaf modification

Options

A. Cladode
B. Phyllode
C. Corm
D. Phylloclade

Answer

To solve the question "Pick up the leaf modification" from the given options, we will analyze each option step by step:

### Step 1: Analyze the Options
We have four options to consider:
1. Cladode
2. Phyllode
3. Com
4. Phylloclad

### Step 2: Identify Cladode
- **Cladode**: This is a modification of the stem. It is a stem that has taken on the function of photosynthesis. Therefore, it is not a leaf modification.

### Step 3: Identify Phyllode
- **Phyllode**: This is a modification of the leaf petiole (the stalk that attaches the leaf blade to the stem). In phyllodes, the leaf blade is reduced or absent, and the petiole becomes flattened and performs the function of photosynthesis. This is indeed a leaf modification and also serves as a xerophytic adaptation.

### Step 4: Identify Com
- **Com**: This is a modified stem that serves as a storage organ for food. Since it is a stem modification, it does not qualify as a leaf modification.

### Step 5: Identify Phylloclad
- **Phylloclad**: Similar to cladodes, phylloclads are also stem modifications that perform photosynthesis. They resemble leaves but are actually modified stems.

### Conclusion
After analyzing all the options, we find that:
- Cladode: Stem modification
- Phyllode: Leaf modification (Correct answer)
- Com: Stem modification
- Phylloclad: Stem modification

Thus, the correct answer to the question "Pick up the leaf modification" is **Phyllode**.

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