Land plants

Card Set Information

Author:
nicoled
ID:
49663
Filename:
Land plants
Updated:
2010-11-15 01:53:33
Tags:
klooster
Folders:

Description:
evolution
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  1. Land plant evolution
    evolved from one lineage of charophyte algae after formation of ozone layer had made life on land possible
  2. 4 main groups of modern land plants
    • 1. Byrophytes
    • land plants
    • seedless
    • 2. Seedless vascular plants
    • 3. Gymnosperms---seeds
    • 4. Agiosperms --- flowering
  3. alternations of generation
    • early--> gametophyte-> dominant -> diploid
    • Present--> Sporophyte-> dominant-> Haploid
  4. Liver worts
    • body thallus
    • chromosome state - haploid
    • gemmae cups produce asexual gemmae (small pieces of plants)
    • male and female plants are gametophytes because they eggs and sperm
  5. Mosses
    • Gametophytes
    • haploids
    • go through mitosis to produce egg and sperm

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