The term ecosystem was coined by

Options

A. A.G. Tansley
B. E. Haeckel
C. E. Warming
D. E.P. Odum

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Term "Ecosystem":**
- An ecosystem is defined as a functional unit of ecology that encompasses the interactions between living organisms (biotic components) and their physical environment (abiotic components).

2. **Identifying the Origin of the Term:**
- To answer the question of who coined the term "ecosystem," we need to look into the history of ecological terminology.

3. **Researching the Contributor:**
- The term "ecosystem" was first introduced by a prominent ecologist named Arthur Tansley.

4. **Establishing the Year of Coinage:**
- Arthur Tansley coined the term in the year 1935, which marked a significant development in the field of ecology.

5. **Selecting the Correct Answer:**
- Among the options provided, the correct answer is A. G. Tansley, as he is the one who introduced the term "ecosystem."

**Final Answer:**
The term "ecosystem" was coined by Arthur Tansley in 1935.

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