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Land plants
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Land plant evolution
evolved from one lineage of charophyte algae after formation of ozone layer had made life on land possible
4 main groups of modern land plants
1. Byrophytes
land plants
seedless
2. Seedless vascular plants
3. Gymnosperms---seeds
4. Agiosperms --- flowering
alternations of generation
early--> gametophyte-> dominant -> diploid
Present--> Sporophyte-> dominant-> Haploid
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
Mosses
Gametophytes
haploids
go through mitosis to produce egg and sperm
Author
nicoled
ID
49663
Card Set
Land plants
Description
evolution
Updated
2010-11-15T06:53:33Z
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