Pinus is classified under Gymnosperms because

Options

A. It is large tree
B. it is pollinated by wind
C. It has exposed ovules
D. It produces seeds and it has narrow leaves

Answer

To determine why Pinus is classified under Gymnosperms, let's analyze the characteristics of Gymnosperms and how they apply to Pinus.

### Step-by-Step Solution:

1. **Definition of Gymnosperms**: Gymnosperms are a group of seed-producing plants that have seeds that are not enclosed in an ovary (fruit). The term "gymnosperm" means "naked seeds".

**Hint**: Remember that "gymnos" means naked, and "sperma" means seed.

2. **Characteristics of Pinus**: Pinus, commonly known as pine trees, exhibit several features typical of Gymnosperms:
- They produce seeds that are not enclosed in a fruit.
- The ovules are exposed on the surface of the cone scales.

**Hint**: Focus on the reproductive structures of Pinus, particularly the cones.

3. **Pollination**: Pinus is primarily wind-pollinated, which is a common characteristic of Gymnosperms. This means that pollen is transferred from male cones to female cones by the wind.

**Hint**: Consider how different plants achieve pollination and how it relates to their classification.

4. **Leaf Structure**: Pinus has needle-like leaves, which are adapted to conserve water. While some other plant groups also have narrow leaves, this feature is common in Gymnosperms, particularly in arid environments.

**Hint**: Think about the adaptations of plants to their environments and how these adaptations can be shared across different groups.

5. **Conclusion**: The primary reason Pinus is classified under Gymnosperms is that it has exposed ovules. This characteristic directly aligns with the defining feature of Gymnosperms, which is the presence of "naked seeds".

**Hint**: Reiterate the key characteristic that distinguishes Gymnosperms from Angiosperms (flowering plants).

### Final Answer:
Pinus is classified under Gymnosperms primarily because it has exposed ovules, which means its seeds are not enclosed in a fruit.