The term quiescent centre was called by

Options

A. Nageli
B. Sachs
C. Malpighi
D. Clowes

Answer

To find the answer to the question "The term quiescent centre was called by", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Term**: The quiescent centre refers to a specific area in the root apical meristem of plants. It is important for the growth and development of roots.

2. **Identify the Theory**: The quiescent centre is associated with the root apical theory, which explains how certain cells in the root meristem remain inactive while others divide and differentiate.

3. **Research the Scientist**: The term "quiescent centre" was introduced by a scientist named "Clowes" in 1953. This is a key detail that helps us pinpoint the origin of the term.

4. **Confirm the Answer**: Based on the information gathered, we can conclude that the term "quiescent centre" was called by Clowes.

5. **Select the Correct Option**: If the options provided include Clowes, then the correct answer is option D.

### Final Answer:
The term quiescent centre was called by Clowes.

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