Transition zone between two vegetational types is

Options

A. ecotone
B. ecotype
C. ecocline
D. ecosystem

Answer

To answer the question, "Transition zone between two vegetational types is," we will analyze the options provided and determine the correct term.

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the term that describes a transition zone between two different types of vegetation. This implies a boundary or area where two distinct ecosystems or biological communities meet.

2. **Analyzing Option One - Ecotone**:
- The term "ecotone" refers to a transition area between two biological communities or ecosystems. It is characterized by the presence of species from both communities and often has unique species that are adapted to the conditions of the transition zone.
- Example: Wetlands serve as an ecotone between terrestrial (land) and aquatic (water) ecosystems.

3. **Analyzing Option Two - Ecotype**:
- An "ecotype" is a genetically distinct population within a species that is adapted to a specific environment. It does not refer to a transition zone but rather to variations within a species based on habitat.
- Conclusion: This is not the correct answer.

4. **Analyzing Option Three - Ecocline**:
- An "ecocline" refers to a gradual change in species composition or characteristics along a gradient, rather than a distinct transition zone. It describes the gradual shift rather than a defined boundary.
- Conclusion: This is not the correct answer.

5. **Analyzing Option Four - Ecosystem**:
- An "ecosystem" encompasses all living organisms (biotic factors) and non-living elements (abiotic factors) in a particular area. It is a broader term and does not specifically refer to a transition zone.
- Conclusion: This is not the correct answer.

6. **Final Conclusion**: After analyzing all the options, the only term that accurately describes a transition zone between two vegetational types is "ecotone." Thus, the correct answer is **Option One: Ecotone**.