Different communities represented by combinations of mosses, herbs, shrubs and trees replacing one another during succession are referred as :

Options

A. Climax communities
B. Seral communities
C. Successive communities
D. Poineer communities

Answer

To answer the question, "Different communities represented by combinations of mosses, herbs, shrubs, and trees replacing one another during succession are referred to as:", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Succession**:
- Ecological succession is the process through which ecosystems change and develop over time. It involves a series of stages where different communities of organisms replace one another.

2. **Identifying the Stages of Succession**:
- In primary succession, the first organisms to colonize an area are often mosses and lichens. As these organisms establish themselves, they modify the environment, making it suitable for other species, such as herbs.

3. **Progression of Communities**:
- Following the mosses, herbs appear, and as conditions continue to improve, shrubs take over. Eventually, trees become established, leading to a mature ecosystem.

4. **Defining the Term**:
- The different communities that appear during this process are known as **Seral Communities**. Each stage in the succession is an intermediate stage that leads to the final stable community known as the climax community.

5. **Conclusion**:
- Therefore, the correct term for the different communities represented by combinations of mosses, herbs, shrubs, and trees that replace one another during succession is **Seral Community**.

### Final Answer:
**Seral Community**

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