Habitat, Feeding, Mobility fresh water habitat Nitrogen fixation non-motile Litteroal zone of sea Autotrophs Non-motile female & motile male On rocks, lower intertidal and shallow subtidal Nonmotile stagnant water, fresh water, sea water Motile fresh water non-motilePhylum/Genus Habitat, Feeding, MobilityLife cycleDominant GenIndependent GenDependent Gen.Antheridia?Archegonia?sperm?CyanobacteriaAnabaena fresh water habitat Nitrogen fixation non-motileGametophytePhaeophytaLaminariaSublittoral zone of oceanGametphyte(n),fertilisation,sporophyte (2n),Immature unilocular sporangia (2n), meiosis,sorus with unilocualr sporangia,spores (n)IndependentFucus Litteroal zone of sea Autotrophs Non-motile female & motile maleGametophyte, gametes, carposporophyte, spores,tetrasporophyte,meiosis, sporesDominantAntheridiaArchegoniaSargassumShallow coastal, tropical and temperate marine waterSexual & vegetative reproduction. stolons & fragments (2n),sporophyte (2n),male antheridium(2n) & female oogonium (2n), diplophase/haplophase fertilisation, meiosis, ovum, sperm (n),zygote (2n)DiatomsMarine and fresh waterInitial cell, normal vegetative cell, vegetative cell division,fertile cell, meiosis,diploid/haploid, fusion,auxosporeRhodophytachondrus On rocks, lower intertidal and shallow subtidal Nonmotilemale & female, zygote, diploid carpospores,tetrasporophyte,haploid tetrasporesPolysiphoniasubtidal zoneChlorophytachlamydomonas stagnant water, fresh water, sea water MotileOedogoniumfresh waterAntheridiaArchegoniaSpirogyra fresh water non-motileVegetative (filament,akinete) & sexual reproduction. Filament,direct/indirect/scalriform conjugation,zygospore,meiosis,new filament.AntheridiaArchegoniaVolvoxfresh waterAsexual & sexual reproduction, volvox(n),antheridia(n), oogonia (n),antherozoid, egg(n) fusion,zygote(2n),reduction, biflagellate swarmer,juvenile colonyAntheridiaArchegonia Solution Habitat, Feeding, Mobility fresh water habitat Nitrogen fixation non-motile Litteroal zone of sea Autotrophs Non-motile female & motile male On rocks, lower intertidal and shallow subtidal Nonmotile stagnant water, fresh water, sea water Motile fresh water non-motilePhylum/Genus Habitat, Feeding, MobilityLife cycleDominant GenIndependent GenDependent Gen.Antheridia?Archegonia?sperm?CyanobacteriaAnabaena fresh water habitat Nitrogen fixation non-motileGametophytePhaeophytaLaminariaSublittoral zone of oceanGametphyte(n),fertilisation,sporophyte (2n),Immature unilocular sporangia (2n), meiosis,sorus with unilocualr sporangia,spores (n)IndependentFucus Litteroal zone of sea Autotrophs Non-motile female & motile maleGametophyte, gametes, carposporophyte, spores,tetrasporophyte,meiosis, sporesDominantAntheridiaArchegoniaSargassumShallow coastal, tropical and temperate marine waterSexual & vegetative reproduction. stolons & fragments (2n),sporophyte (2n),male antheridium(2n) & female oogonium (2n), diplophase/haplophase fertilisation, meiosis, ovum, sperm (n),zygote (2n)DiatomsMarine a.

1. Habitat,
Feeding,
Mobility
fresh water habitat
Nitrogen fixation
non-motile
Litteroal zone of sea
Autotrophs
Non-motile female & motile male
On rocks, lower intertidal and shallow subtidal
Nonmotile
stagnant water, fresh water, sea water
Motile
fresh water
non-motilePhylum/Genus
Habitat,
Feeding,
MobilityLife cycleDominant GenIndependent GenDependent
Gen.Antheridia?Archegonia?sperm?CyanobacteriaAnabaena
fresh water habitat
Nitrogen fixation
non-motileGametophytePhaeophytaLaminariaSublittoral zone of
oceanGametphyte(n),fertilisation,sporophyte (2n),Immature unilocular sporangia (2n),
meiosis,sorus with unilocualr sporangia,spores (n)IndependentFucus
Litteroal zone of sea
Autotrophs
Non-motile female & motile maleGametophyte, gametes, carposporophyte,
spores,tetrasporophyte,meiosis, sporesDominantAntheridiaArchegoniaSargassumShallow
coastal, tropical and temperate marine waterSexual & vegetative reproduction. stolons &
fragments (2n),sporophyte (2n),male antheridium(2n) & female oogonium (2n),
diplophase/haplophase fertilisation, meiosis, ovum, sperm (n),zygote (2n)DiatomsMarine and
fresh waterInitial cell, normal vegetative cell, vegetative cell division,fertile cell,
meiosis,diploid/haploid, fusion,auxosporeRhodophytachondrus
On rocks, lower intertidal and shallow subtidal
Nonmotilemale & female, zygote, diploid carpospores,tetrasporophyte,haploid

2. tetrasporesPolysiphoniasubtidal zoneChlorophytachlamydomonas
stagnant water, fresh water, sea water
MotileOedogoniumfresh waterAntheridiaArchegoniaSpirogyra
fresh water
non-motileVegetative (filament,akinete) & sexual reproduction.
Filament,direct/indirect/scalriform conjugation,zygospore,meiosis,new
filament.AntheridiaArchegoniaVolvoxfresh waterAsexual & sexual reproduction,
volvox(n),antheridia(n), oogonia (n),antherozoid, egg(n) fusion,zygote(2n),reduction,
biflagellate swarmer,juvenile colonyAntheridiaArchegonia
Solution
Habitat,
Feeding,
Mobility
fresh water habitat
Nitrogen fixation
non-motile
Litteroal zone of sea
Autotrophs
Non-motile female & motile male
On rocks, lower intertidal and shallow subtidal
Nonmotile
stagnant water, fresh water, sea water
Motile
fresh water
non-motilePhylum/Genus
Habitat,
Feeding,
MobilityLife cycleDominant GenIndependent GenDependent
Gen.Antheridia?Archegonia?sperm?CyanobacteriaAnabaena
fresh water habitat
Nitrogen fixation
non-motileGametophytePhaeophytaLaminariaSublittoral zone of
oceanGametphyte(n),fertilisation,sporophyte (2n),Immature unilocular sporangia (2n),
meiosis,sorus with unilocualr sporangia,spores (n)IndependentFucus

3. Litteroal zone of sea
Autotrophs
Non-motile female & motile maleGametophyte, gametes, carposporophyte,
spores,tetrasporophyte,meiosis, sporesDominantAntheridiaArchegoniaSargassumShallow
coastal, tropical and temperate marine waterSexual & vegetative reproduction. stolons &
fragments (2n),sporophyte (2n),male antheridium(2n) & female oogonium (2n),
diplophase/haplophase fertilisation, meiosis, ovum, sperm (n),zygote (2n)DiatomsMarine and
fresh waterInitial cell, normal vegetative cell, vegetative cell division,fertile cell,
meiosis,diploid/haploid, fusion,auxosporeRhodophytachondrus
On rocks, lower intertidal and shallow subtidal
Nonmotilemale & female, zygote, diploid carpospores,tetrasporophyte,haploid
tetrasporesPolysiphoniasubtidal zoneChlorophytachlamydomonas
stagnant water, fresh water, sea water
MotileOedogoniumfresh waterAntheridiaArchegoniaSpirogyra
fresh water
non-motileVegetative (filament,akinete) & sexual reproduction.
Filament,direct/indirect/scalriform conjugation,zygospore,meiosis,new
filament.AntheridiaArchegoniaVolvoxfresh waterAsexual & sexual reproduction,
volvox(n),antheridia(n), oogonia (n),antherozoid, egg(n) fusion,zygote(2n),reduction,
biflagellate swarmer,juvenile colonyAntheridiaArchegonia