1. In Angiosperms, the functional megaspore gives rise to

2. Which of the following shows double fertilization?

3. Which of the following contains the filiform apparatus?

4. Which of the following undergoes meiosis?

5. Perisperm is different from endosperm because

6. The pollen tube enters the embryo sac through

7. Embryo sac of the angiosperms having eight nuclei is

8. Double fertilization is due to the fusion of

9. Double fertilization was discovered by

10. The embryo sac occurs in