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Protists (Protozoa (Rhizopoda (Amoebas, move by pseudopods- ameboid…
Protists
Protozoa
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Unicellular, eukaryotic animal-like protists
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Aerobic, anaerobic chemoheterotrophic organism
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Protozoan diversity
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clothed in scales or other adhering maIer, or be naked;
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Nutrition
Mostly aerobic heterotrophs, some are capable of
anaerobic growth
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Rhizopoda
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habitat-freshwater, marine
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Apicomplexa
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primarily animal parasites, insects
Algae
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Classified according to their rRNA sequences,
structures, pigments and other qualities.
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Habitat
aquatic habitat- fresh water, marine and
brackish
moist soils and artificial aquatic habitat (fish
tanks, pool)
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Cell Walls of Algae
Most cases- cellulose fibrils but usually modified by addition of polysaccharide (eg. Pectin, xylan, mannans…)
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Motility of algae
If motile, due to flagella
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Most cases, non-motile in vegetative stage and form motile gametes only during sexual reproduction
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Algal ecology
Seaweed (marine benthic algae that are
multicellular, macrothallic)
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Rhodophyta
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Chlorophylls a and d, phycocyanin, phycoerythrin
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Phaeophyta
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Chlorophylls a and c, xanthophylls
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SLIME MOLDS
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Different in cellular organization, reproduction and
life cycles
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Kingdom Protists is artificial grouping of over
65,000 different single-celled life forms
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