Major producers of terrestrial habitats are

Options

A. Metaphytes
B. Metazoa
C. Photosynthetic protistans
D. Photosynthetic monerans.

Answer

To answer the question "Major producers of terrestrial habitats are," we can follow these steps:

### Step 1: Understand the Concept of Producers
Producers are organisms that can make their own food through photosynthesis. In terrestrial habitats, these are primarily plants.

### Step 2: Identify the Options
The question provides several options, including metaphytes, metazoa, photosynthetic protistans, and photosynthetic monera. We need to evaluate each option to determine which one is the major producer in terrestrial habitats.

### Step 3: Analyze Each Option
1. **Metaphytes**: These are multicellular plants found in terrestrial habitats. They are indeed the major producers because they perform photosynthesis and provide energy for other organisms in the ecosystem.

2. **Metazoa**: These are multicellular animals. They are primarily consumers, meaning they rely on producers for their energy. Therefore, they cannot be considered major producers.

3. **Photosynthetic Protistans**: An example is Euglena, which is a photosynthetic organism. However, these organisms are typically aquatic and do not dominate terrestrial habitats.

4. **Photosynthetic Monera**: This includes organisms like cyanobacteria (blue-green algae). While they can perform photosynthesis, they are not as significant in terrestrial habitats compared to metaphytes.

### Step 4: Conclusion
Based on the analysis, the major producers of terrestrial habitats are **metaphytes**.

### Final Answer
The major producers of terrestrial habitats are **metaphytes**.

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