Plant group with largest ovule, largest tree, and largest gamets:

Options

A. Gymnosperm
B. Angiosperm
C. BryoBIOta
D. PteriodoBIOta

Answer

To solve the question about which plant group has the largest ovule, largest tree, and largest gametes, we can analyze each option provided:

1. **Understanding the Groups:**
- **Gymnosperms:** These are seed-producing plants that do not form flowers or fruits. Their seeds are often exposed on cones. Examples include pines and cycads.
- **Angiosperms:** These are flowering plants that produce seeds enclosed within a fruit. They have a wide variety of sizes and structures.
- **Bryophyta:** This group includes mosses and liverworts, which are non-vascular plants and generally small in size.
- **Pteridophyta:** This group includes ferns and horsetails, which are vascular plants but do not produce seeds.

2. **Identifying the Largest Features:**
- **Largest Ovule:** Gymnosperms have larger ovules compared to angiosperms, which have smaller ovules enclosed within ovaries.
- **Largest Tree:** Gymnosperms include some of the largest trees on Earth, such as the Giant Sequoia and Coastal Redwood.
- **Largest Gametes:** In gymnosperms, the female gametes (eggs) are larger than those found in angiosperms.

3. **Conclusion:**
- Based on the characteristics analyzed, gymnosperms possess the largest ovule, the largest trees, and the largest gametes among the given options.

Thus, the answer to the question is **A. Gymnosperm**.