Term
| advantages of reduced gametophytes |
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Definition
| gametophyte can grow within sporangia (safer), moist sporophyte protects against drying out, gametophytes dependent of sporophytes |
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Term
| The rule among seed plants: heterosporous/homosporous? |
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Definition
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Term
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Definition
| layer of sporophyte tissue envelops and protects the megasporangium |
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Term
| The rule among seed plants: heterosporous/homosporous? |
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Definition
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Term
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Definition
| layer of sporophyte tissue envelops and protects the megasporangium |
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Term
| whole structure of a female gymnosperm's reproductive organ |
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Definition
| ovule (megasporangium, megaspore, integument) |
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Term
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Definition
| a microspore that consists of a male gametophyte enclosed within the pollen wall |
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Term
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Definition
| transfer of pollen to the part of a seed plant that contains the ovules |
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Term
| evolutionary advantages of seeds |
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Definition
| multicellular that provides more protection to embryo, have supply of stored food |
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Term
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Definition
| heterosporous, no seeds, produced wood (transitional species to gymnosperms) |
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Term
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Definition
| cone-bearing gymnosperms; spruce, pine, fir, and redwoord |
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Term
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Definition
| angiosperm structure specialized for sexual reproduction |
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Term
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Definition
| base of flower; usually green and enclose the flower before it opens |
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Term
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Definition
| interior to sepals; brightly colored in most flowers and aid in attracting pollinators |
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Term
| True/False. Flowers that are wind pollinated are NOT brightly colored. |
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Definition
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Term
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Definition
| produce microspores that develop into pollen grains containing male gametophytes |
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Term
| True/False. Flowers that are wind pollinated are NOT brightly colored. |
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Definition
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Term
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Definition
| produce microspores that develop into pollen grains containing male gametophytes |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| make megaspores and their products, female gametophytes |
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Term
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Definition
| receives pollen on the sticky tip of the carpel |
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Term
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Definition
| leads from the stigma to the ovary at the base of the carpel |
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Term
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Definition
| contains one or more ovules |
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Term
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Definition
| consists of a mature ovary; protect dormant seeds and aid in their dispersal |
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Term
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Definition
| site for the development of an egg in each ovule in an ovary |
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Term
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Definition
| transfer of pollen from an anther of a flower on one plant to the stigma of a flower on another plant of the same species |
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Term
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Definition
| a pore in the integuments of the ovule, where the pollen tube penetrates the ovule |
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Term
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Definition
| one fertilization event produces a zygote and the other produces a triploid cell |
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Term
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Definition
| one or two seed leaves from a rudimentary root |
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Term
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Definition
| tissue rich in starch and other food reserves that nourish the developing embryo |
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Term
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Definition
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Term
| how are the groups of angiosperms separated? |
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Definition
| based on number cotyledons or seed leaves, in the embryo |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| flowering plants belonging to the oldest lineages |
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Definition
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