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10 Cards in this Set
- Front
- Back
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common features in gymnosperms and angiosperms
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- dominant sporophyte
- heterospory - ovules - pollen |
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advantage of dominant sporophyte
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- retained sporangia of the parental sporophyte
- delicate gametophytes are protected from environmental stress (dryness) |
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advantages of pollen
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- no water needed
- distance sperm can travel |
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characteristics of gymnosperms
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- seeds (naked - no fruit)
- pollen |
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classification of gymnosperms
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- cycadophora
- ginkophyta - conferophyta |
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characteristics of angiosperms
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- flowers
- fruit - efficient vascular tissue - monocots and eduicots |
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eudicots
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- number of seed leaves (cotyledons): 2
- leaf venation: branched - stem vascular arrangement: in a ring |
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monocots
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- number of seed leaves (cotyledons): 1
- leaf venation: parallel - stem vascular arrangement: scattered |
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flower
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- adaptation for sexual reproduction
- male part (stamen): anther and filament - female part (carpel): stigma, style, ovary |
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importance of seed plants
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- food
- fuel - wood products - medicine - ENERGY |
