The term bacteriophage was coined by

Options

A. (a) de Herelle
B. (b) Twort
C. (c) Stanley
D. (d) lvanowski

Answer

**Step-by-Step Solution:**

1. **Understanding the Term "Bacteriophage":**
- The term "bacteriophage" can be broken down into two parts: "bacteria" and "phage."
- "Bacteria" refers to the microorganisms, while "phage" means "eater."
- Therefore, bacteriophages are viruses that specifically infect and eat bacteria.

2. **Identifying the Origin of the Term:**
- The question asks who coined the term "bacteriophage."
- The options provided are A. D. Harrell, B. Twart, C. Stanley, and D. Iwonski.

3. **Historical Context:**
- The term was coined in the year 1918.
- It is important to note that the scientist associated with this term is Felix D. Heron, who is often referred to as D. Harrell.

4. **Selecting the Correct Answer:**
- Based on the information, the correct answer to the question is A. D. Harrell.

**Final Answer:**
The term bacteriophage was coined by A. D. Harrell.

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