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Protozoa are critical members of the ______ which are free-living, drifting organisms that form the basis of aquatic food chains.
All free-living aquatic and pathogenic protozoa exist as a motile feeding stage called a __________.
________ is a parabasalid that has numerous flagella, inhabits the guts of termites, where it assists in the digestion of wood.
_________ is a parabasalid that proliferates and causes severe inflammation that can lead to sterility when the normally acidic pH of the vagina is raised.
________ is a ciliate that has apical cilia which create a whirlpool-like current to direct food into its mouth.
Which of the 3 groups of alveolates contain red pigment that cause the phenomenon called red tide?
Which dinoflagellate causes memory loss, confusion, headaches, respiratory difficulties, skin rash, muscle cramps and nausea? Such poisoning is called what?
Pfiesteria, (PEAS- possible estuary-associated syndrome)
A major taxon of cercozoa is ___________. They have a porous shell composed of calcium carbonate.
Which group of amoebae have ornate shells composed of silica and reinforce their pseudopodia with stiff internal bundles of microtubules?
Which group of amoebae are distinguished from the other 2 by having lobe-shaped pseudopodia and no shells?
_________ and _________ can cause diseases of the eyes or brains of humans and animals that swim in water containing them.
Naegleria and Acanthamoeba
________ are in the group amoebozoa and always live inside animals where they produce potentially fatal amebic dysentery.
What are 2 main ways that slime molds differ from fungi?
they lack cell walls and they are phagocytic rather than absorptive in their nutrition
Which type of slime mold exists as streaming, coenocytic, colorful filaments of cytoplasm that creep as amoebae through forest litter, feeding by phagocytizing organic debris and bacteria?
plasmodial (acellular) slime molds
Which type of slime mold exists as individual hploid myxamoebae that phagocytize bacteria, yeasts, dung, and decaying vegetation?
cellular slime molds
Which type of slime mold produces spores but they are not enclosed in a common wall and they are not the result of meiosis?
cellular slime molds
Euglenids move by using their flagella as well as by flowing, contracting, and expanding their cytoplasm. This is called ______________.
Each euglenid has a __________ that plays a role in positive phototaxis by casting a shadow on a photoreceptor at the flagellar base, triggering movement in that direction.
Kinetoplastids have a single large mitochondrion that contains a unique region of a mitochondrial DNA called a __________.
Diplomonadida have __________ in the cytoplasm and mitochondrial genes in the nuclear chromosomes.
What are the seven groups of protozoa?
Parabasala, Alveolata, Cercozoa, Radiolaria, Amoebozoa, Euglenozoa, and Diplomonadida
Fungi that derive their nutrients from living plants and animals usually have modified hyphae called __________ which penetrate the tissue of the host to withdraw nutrients.
In sexual spore formation of fungi, Haploid (n) cells from a + thallus and a - thallus fuse to form ________.
What are the four major subgroups of fungi?
zygomycota, ascomycota, basidiomycota, and deuteromycetes
________ is a division of Zygomycota and the organisms within it are obligatory intracellular parasites that spread from host to host as small, resistant spores.
Ascomycota is characterized by the formation of haploid __________ within sacs called _______.
Cryptococcus neoformans comes from the division ________ of fungi and is the leading cause of ____________.
Basidiomycota, fungal meningitis
Partnerships between fungi and photosynthetic microbes—commonly, cyanobacteria, or less frequently, green algae
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