angiosperms - 240,000 species
- dominant for over 100 million years
- 3 major advances - flower, broad leaves, fruits
- flower - male/female gametophytes
- androecium creates pollen in anther
- gynoecium creates eggs in ovary
- pollen makes tube into ovary >> forms embryo >> seed
- broad leaves - collects more sunlight
- deciduous trees - leaves drop yearly (goes into dormant period)
- fruits - seed package >> attracts pollinators
- digested by animals >> dropped in feces (adds nutrients)
- monocots - 1 cotyledon (seed leaf)
- parallel veins in leaves
- scattered vascular bundles
- monosculate pollen
- adventitious roots
- floral parts in multiples of 3
- dicots - 2 cotyledons, more woody than monocots
- netted veins in leaves
- vascular bundles in rings
- tricolpate pollen
- primary/adventitious roots
- floral parts in multiples of 4, 5
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