In a plant, cell/tissues arising out of the same meristem have different structrue at maturity it is known as (A)______

Answer

To solve the question, we need to understand the concept of meristems and how they contribute to the development of plant tissues. Here’s a step-by-step breakdown:

### Step 1: Understand Meristems
- Meristems are regions in plants where cells are actively dividing. They are responsible for the growth of the plant.
- There are two main types of meristems: apical meristems (found at the tips of roots and shoots) and lateral meristems (which contribute to the thickness of the plant).

**Hint:** Remember that meristems are the source of new cells in plants.

### Step 2: Cell Differentiation
- After cells are produced by meristems, they undergo a process called differentiation.
- Differentiation is when cells develop into different types with specific structures and functions.

**Hint:** Think about how different types of cells in plants (like xylem and phloem) arise from the same initial cell type.

### Step 3: Different Structures at Maturity
- The question specifies that cells/tissues arising from the same meristem have different structures at maturity.
- This means that even though they originate from the same source (the meristem), they can develop into various specialized forms.

**Hint:** Consider how the same type of stem cell can become different cell types in animals and plants.

### Step 4: Identify the Term
- The process where cells from the same meristem differentiate into various structures is known as "open differentiation."
- This term describes the ability of cells to develop into different forms and functions despite originating from the same meristematic tissue.

**Hint:** Look for terms in plant biology that describe differentiation processes.

### Final Answer
The answer to the question is (A) **open differentiation**.