The term biosystematic was coined by

Options

A. Linnaeus
B. Engler and Prantl
C. Camp and Gilly
D. Bentham and Hooker.

Answer

### Step-by-Step Solution:

1. **Understanding the Term "Biosystematic":**
- Biosystematics is a branch of biology that focuses on the evolutionary relationships among organisms. It involves classifying organisms based on their phylogenetic history, anatomy, and physiology.

2. **Identifying the Options:**
- The question provides four options regarding who coined the term "biosystematic":
1. Linnaeus
2. Engler and Prantle
3. Camp and Gilly
4. Bentham and Hooker

3. **Analyzing Each Option:**
- **Linnaeus:** Known for the two-kingdom classification system. Not related to biosystematics.
- **Engler and Prantle:** Associated with phylogenetic classification. Not the correct answer.
- **Camp and Gilly:** Coined the term "biosystematic" in 1943. This is the correct answer.
- **Bentham and Hooker:** Known for the natural system of classification. Not related to biosystematics.

4. **Conclusion:**
- The term "biosystematic" was coined by Camp and Gilly in 1943, making option 3 the correct answer.

### Final Answer:
The term biosystematic was coined by **Camp and Gilly**.

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