| A | B |
|---|
| Frond | leaf of a fern that grows from a rhizome |
| Gametophyte stage | plant life cycle stage that begins when cells in reproductive organs undergo meiosis and produce haploid cells |
| Germination | series of events that results in the growth of a plant from a seed |
| Ovary | in plants, swollen base of an angiosperm’s pistil, where egg-producing ovules are found; in humans, female reproductive organ that produces eggs and is located in the lower part of the body |
| Pistil | female reproductive organ inside the flower of an angiosperm; consists of a sticky stigma, where pollen grains land, and an ovary |
| Pollen grain | small structure produced by the male reproductive organs of a seed plant; has a water resistant coat, can develop from a spore, and contains gametophyte parts that will produce sperm |
| Pollination | transfer of pollen grains to the female part of a seed plant by agents such as gravity, water, wind, and animals |
| Prothallus | small, green, heart-shaped gametophyte plant form of a fern that can live in water, soil, and living and dead organisms |
| Rhizome | underground stem |
| Sori | fern structure in which spores are produced |
| Spore | waterproof reproductive cell of a fungus that can grow into a new organism; in plants, haploid cells produced in the gametophyte stage that can divide by mitosis to form plant structures or an entire new plant or can develop into sex cells |
| Sporophyte stage | plant life-cycle stage that begins when an egg is fertilized by a sperm |
| Stamen | male reproductive organ inside the flower of an angiosperm; consists of an anther, where pollen grains form, and a filament |
