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10 Cards in this Set

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