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cell repro.- Cris D.
cell reproduction
| Question | Answer |
|---|---|
| sori | fern structures in which spores are produced |
| prothallus | small, green, heartshaped gametophyte plant form of a fern that can make its own food and absorb water and nutrients from the soil |
| pollen grain | small structure productive organs of a seed plant; has a water resistant coat. can develop from aspore, and contains gametophyte parts that will produce sperm |
| pollination | transfer of polleen grains to the female part of a seed plant by agents such as gravity, water, wind, and animals |
| ovule | in the seed plants, the female reproductive part that produces egss |
| stamen | male reproductive organ inside the flower of an angiosperm; consists of an anther, where pollen grains form, and a filament |
| pistil | female reproductive organ inside the flower of an angioserm; consists of a sticky stigma, where pollen grains land, and an ovary |
| ovary | swollen base of an angiosperms pistil, where egg-producing ovules are found |
| germination | series of events that result in the growth of a plant from a seed |
| rhizome | underground stem |
| frond | leaf of a fern that grows from the rhizome |
| sporophyte stage | plant life cycle stage that begins when an egg is fertilized by a sperm |
| gametophyte | plant life cycle stage that begins when cells in reproductive organs undergo meiosis and produce haploid cells |
| spore | waterproof reproductive cell of fucngus that can grow into a new organism; in plants, haploid cells produced in the gametophyte stage that can divide by mitosis to form plan like structures or an entire new plant or can develop into sex cells |
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cris
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