In bryophytes and pteridophytes, transport of male gametes requires

Options

A. Insects
B. Birds
C. Water
D. Wind

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the transport of male gametes in bryophytes and pteridophytes. We need to identify the medium required for this transport.

2. **Identifying Bryophytes and Pteridophytes**:
- Bryophytes are non-vascular plants, which include mosses and liverworts.
- Pteridophytes are vascular plants, which include ferns and horsetails.

3. **Analyzing the Options**: The options provided are insects, birds, water, and wind.
- Insects and birds are typically involved in the pollination of flowering plants, not bryophytes or pteridophytes.
- Wind is also a method of pollination but is not applicable to the transport of male gametes in these groups.

4. **Role of Water**: In bryophytes and pteridophytes, the male gametes (sperms) are motile and flagellated. They require a liquid medium to swim towards the female gametes for fertilization.

5. **Conclusion**: The correct answer is that the transport of male gametes in bryophytes and pteridophytes requires water. This is because the sperm cells swim through water to reach the female gametes.

6. **Final Answer**: The transport of male gametes in bryophytes and pteridophytes requires water.

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