Even in absence of pollinating agents , seed setting is assured in :

Options

A. Zostera
B. Salvia
C. Fig
D. Commelina

Answer

To solve the question "Even in absence of pollinating agents, seed setting is assured in:", we will analyze each of the given options step by step.

### Step 1: Understand the Question
The question asks for a plant species that can achieve seed setting without the need for pollinating agents. This implies that the plant must have a mechanism for self-pollination or a way to ensure fertilization without external pollinators.

### Step 2: Analyze Each Option
1. **Zostera (Seagrass)**:
- Zostera is a type of seagrass that primarily relies on water currents for pollination. It has unisexual flowers, meaning it requires a pollinating agent (like water or wind) to facilitate fertilization. Therefore, Zostera cannot assure seed setting in the absence of pollinators.

2. **Selvia**:
- Selvia (or Salvia) is known to have flowers that attract birds and other pollinators. It typically requires these agents for pollination to occur. Thus, Selvia also cannot guarantee seed setting without pollinators.

3. **Fig (Ficus)**:
- The fig tree has a unique mutualistic relationship with fig wasps, which are essential for its pollination. The wasp lays its eggs in the fig flowers and, in the process, transfers pollen. This means that fig trees depend on pollinators for seed setting, so they do not fit the criteria.

4. **Comelina**:
- Comelina (or Commelina) has flowers that are classified as cleistogamous, meaning they do not open at all. These flowers are bisexual, containing both stamens and pistils, allowing for self-pollination. Since they can fertilize themselves without the need for external pollinators, Comelina can assure seed setting even in their absence.

### Step 3: Conclusion
Based on the analysis, the correct answer is **Comelina** (option d), as it can achieve seed setting without pollinating agents due to its cleistogamous flowers.

### Final Answer
The correct option is **d. Comelina**.

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