Have no flagellated life cycle stage
Not all are red
Most are multicellular
Also called seaweeds
Habit of Rhodophyta
l Red aglae- lack flagellated stages in life cycle
l Phycoerythin pigment
l Marine and multicellular
l Filamentous, delicately branched thalli (body)
l Alternation of generations
Chlorophyta: (green algae)
Probably gave rise to land plants
Most are fresh water algae
l Green algae –
l have chloroplasts that resemble those of plants
l Plants and green algae share common ancestor
l Mostly fresh water
l May be planktonic, inhabitants of damp soil, symbionts in other eukaryotes, or mutualistic partners with fungi (lichens)
l Formation of colonies, repeated nuclear divisions to produce multinucleated filaments, and cell division and differentiation
l Sexual and asexual staged life cycles
l Some have alternation of generations
Diversity of protists use pseudopodia for movement
Most are heterotrophs and use pseuodpods to hunt for food
Unsure of their place in a phylogenetic tree
Rhizopoda (amoebas)
Actinopoda (heliozoans and radiolarians)
Actinopod means “ray foot”
Extensions of slender pseudopods
Heliozoans –
Fresh water habitat
Skeletons consist of silica
what is the habitat of Rhizopoda ?
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