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What do the members of the kingdom Protista have in common?
That they don't fit anywhere else
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How did the first eukaryotic organisms arise?
From ancient prokaryotic cells- endosymbiosis(living inside one another)
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What is a protist?
single celled/ or simple multicellular organism that doesn't fit anywhere else
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How are protists grouped?
based on characteristics that resemble fungi, plants, and animals
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What is a protozoan?
animal like protist
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How are protozoans classified?
based on their form of locomotion
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Describe key characteristics of an amoeba
pesudopod- rounded cytoplasmic extension, like an arm
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Describe the key characteristics of a paramecium
cilia: hairlike cytoplasmic projections
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Describe the key characteristics of euglena
flagella: whip like structure made of microtubules
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What disease is caused by typanosoma?
sleeping sickness
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What disease is caused by plasmodium?
malaria
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What disease is caused by giardia?
giardiasis- diarrhea
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What is the common name for plant-like protists?
algae
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Name the four groups of single-celled plant-like protists.
unicellular, colonial, filamentious, multicellular
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Describe unicellular algae
phytoplankton, free living aquatic organisms
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Describe colonial algae
groups of individuals acting coordinately, ie volvox
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Describe filamentious algae
slender, rod-shaped cells joined from end to end. anchors organisms to ocean floor ie spirogyra
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Describe multicellular algae
Large, plant-like ie seaweed
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How are multi-cellular plant-like protists or seaweeds grouped?
based on type of pigment, food storage, and cell wall composition
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What are the three groups of multi-cellular palnt-like protists?
Chlorophyta(green), phaeophyta(brown), rhodophyta(red)
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What are the two types of fungus-like protists?
Slime molds and Water molds
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Describe Slime Molds
- fungus-like protists that are a mass of cytoplasm
- ie phylum myxomycota and pictyostelida
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Describe Water molds
- fungus-like protist that act as parasites for fish
- ie phylum oomycota and chytridiomycta
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