Sepals and petals are indistinguishable or absent in case of

Options

A. entomophilous plants
B. anemophilous plants
C. ornithophilous plants
D. myrmechophilous plants

Answer

### Step-by-Step Solution

1. **Understanding the Question**: The question asks about the condition of sepals and petals in certain types of plants. We need to identify which type of plant has indistinguishable or absent sepals and petals.

2. **Identifying the Types of Plants**: The options provided are:
- A. Antomolophilous plants
- B. Anemophilous plants
- C. Ornithophilous plants
- D. Myrmecophilous plants

3. **Analyzing Each Option**:
- **Antomolophilous plants**: These are insect-pollinated plants, which usually have bright colors and distinct floral structures to attract pollinators.
- **Anemophilous plants**: These are wind-pollinated plants. They typically do not have bright colors or distinct petals, as they rely on wind for pollen transfer. In many cases, sepals and petals are either absent or not easily distinguishable.
- **Ornithophilous plants**: These are bird-pollinated plants, which often have bright colors and tubular shapes to attract birds.
- **Myrmecophilous plants**: These are plants that have a mutualistic relationship with ants and often have specialized structures, but they do not typically lack petals or sepals.

4. **Conclusion**: Based on the analysis, the correct answer is **B. Anemophilous plants**, as they are characterized by the absence or indistinguishability of sepals and petals.

### Final Answer
**The correct option is B. Anemophilous plants.**

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