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HABITAT
usually aquatic , but some are found in moist territorial habitat like tree trunks and wet rocks
CELL WALL
inner layer - cellulose , outer layer - pectin
BODY STRUCTURE
Plant body is thallus (undifferentiated)
It may be unicellular , colonial filamentous or parenchymatous
Vascular and mechanical tissue - ?
ABSENT
Vegtative reproduction -
Fragmentation
Asexual reproduction
mostly zoospores - flagellated or sometimes aplanospores - non flagellated
Sexual reproduction
Isogamy , anisogamy or oogamy
What is oogamy?
small , motile male gamete and large immotile female gamete
Embryo formation?
Absent
3 types of algae?
CHLOROPHYCAE , PHAOPHYCAE AND RHODOPHYCAE