| A | B |
|---|
| Gametophyte stage | when cells form having a haploid number of chromosomes |
| Sporophyte stage | when cells form having a diploid number of chromosomes |
| prothallus | a small green heart-shaped plant that grows from a fern spore |
| ovary | the swollen base of the pistil where ovules are formed |
| germination | the start of the growth of a plant |
| pistil | female reproductive organ of flowering plants |
| pollen grain | part of the plant's male reproductive organ that contains sperm |
| pollination | transfer of pollen grains from the male to female reproductive organs of plants |
| rhizome | underground stems of plants such as ferns |
| stamen | male reproductive organ of flowering plants |
| spore | haploid cells produced when cells in reproductive organs undergo meiosis |
| frond | fern leaf |
| sori | structures in which fern spores are produced |
| ovule | where eggs are produced |
