Double fertililzation is exhibited by

Options

A. Gymnosperms
B. Algae
C. Fungi
D. Angiosperms

Answer

**Step-by-Step Solution:**

1. **Understanding Double Fertilization**:
- Double fertilization is a unique process where two fertilization events occur within the ovule of flowering plants (angiosperms).

2. **Identifying the Organisms**:
- The question provides four options: gymnosperms, algae, fungi, and angiosperms. We need to identify which of these exhibit double fertilization.

3. **Analyzing Each Option**:
- **Gymnosperms**: These plants, such as conifers, do not have flowers and their seeds are not enclosed in an ovary. They do not exhibit double fertilization.
- **Algae**: Algae reproduce through various means (vegetative, sexual, and asexual), but they do not exhibit double fertilization.
- **Fungi**: Fungi reproduce mainly through methods like budding, fragmentation, and spore formation. They do not exhibit double fertilization.
- **Angiosperms**: These are flowering plants that exhibit double fertilization. In this process, one male gamete fertilizes the egg cell to form the embryo, while the other male gamete fuses with the central cell to form the triploid endosperm.

4. **Conclusion**:
- Based on the analysis, the correct answer to the question "Double fertilization is exhibited by" is **angiosperms**.

**Final Answer**: Angiosperms

---