Gymnosperm life cycle.
- Sporophytes bear cones.
- Pollen cones contain microsporangia.
- Ovulate cones contain megasporangia.
- After pollination,
a megaspore develops into a female gametophyte.
- The pollen grain germinates a sperm
cell which fertilizes an egg.
- The ovule
becomes a seed.
Review and exercise: 