Major ecological community of plants and animals extending over large natural area is known as:

Options

A. bioregion
B. biosphere
C. biota
D. biome

Answer

To solve the question "Major ecological community of plants and animals extending over large natural area is known as:", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question is asking for the term that describes a large ecological community consisting of plants and animals.

2. **Identify Key Terms**: The key terms in the question are "major ecological community," "plants and animals," and "large natural area."

3. **Consider the Options**: The options provided are:
- A) Bio-region
- B) Biosphere
- C) Biota
- D) Biome

4. **Analyze Each Option**:
- **A) Bio-region**: This term generally refers to a specific area defined by its ecological characteristics but does not necessarily imply a large area.
- **B) Biosphere**: This term refers to the global sum of all ecosystems, which is much larger than just a community of plants and animals.
- **C) Biota**: This term refers to the flora and fauna of a particular region but does not specifically indicate a large ecological community.
- **D) Biome**: This term refers to a major ecological community characterized by specific climate conditions and types of organisms, extending over large areas.

5. **Select the Correct Answer**: Based on the analysis, the correct answer is **D) Biome**. A biome is indeed a major ecological community of plants and animals that extends over large natural areas.

### Final Answer:
The major ecological community of plants and animals extending over a large natural area is known as a **Biome**.

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