According to Haberlandt, cortex and pith are derived from

Options

A. Periblem
B. Plerome
C. Procambium
D. Ground meristem

Answer

To answer the question "According to Haberlandt, cortex and pith are derived from," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Terminology**:
- Familiarize yourself with the terms involved: cortex, pith, and meristems. Cortex is the tissue between the epidermis and the vascular tissue, while pith is the central part of the stem.

2. **Identify Key Concepts from Haberlandt's Theory**:
- Haberlandt classified the meristems into three main types based on their functions:
- Protoderm
- Procambium
- Ground meristem

3. **Determine the Function of Each Meristem**:
- **Protoderm**: This is the outermost layer that develops into the epidermis.
- **Procambium**: This forms the primary vascular tissues, which include xylem and phloem.
- **Ground Meristem**: This gives rise to the ground tissues, which include the cortex, pith, and other supportive tissues.

4. **Connect the Dots**:
- Since the question specifically asks about the origin of cortex and pith, we need to focus on the ground meristem.
- The ground meristem is responsible for forming both the cortex and the pith in the plant structure.

5. **Conclude the Answer**:
- Based on the information gathered, we can conclude that according to Haberlandt, both the cortex and pith are derived from the ground meristem.

### Final Answer:
According to Haberlandt, cortex and pith are derived from the ground meristem.

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