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In Selaginella male gametes are...

In Selaginella male gametes are

A

Uniflagellate

B

Biflagellate

C

Non-flagellate

D

Multiflagellate.

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Selaginella**: Selaginella is a genus of plants that belongs to the group of vascular plants known as lycophytes. It is important to note that Selaginella exhibits heterospory, meaning it produces two different types of spores: microspores and megaspores. 2. **Identifying Spores**: The smaller spores produced by Selaginella are called microspores, which develop into male gametophytes. The larger spores are called megaspores, which develop into female gametophytes. 3. **Male Gametophytes and Sperm Production**: The microgametophytes, which arise from the microspores, are responsible for producing male gametes (sperm). 4. **Characteristics of Male Gametes**: The male gametes produced by the microgametophytes are motile and equipped with flagella. This flagella is crucial for the sperm's movement. 5. **Type of Flagellation**: In Selaginella, the male gametes are specifically described as biflagellate, meaning they possess two flagella. This characteristic allows the sperm to swim effectively through water to reach the eggs produced by the megaspores. 6. **Conclusion**: Based on the above information, the male gametes of Selaginella are biflagellate. **Final Answer**: In Selaginella, male gametes are biflagellate. ---
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