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14 Cards in this Set
- Front
- Back
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What material normally forms the covering of Foraminifera?
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calcium carbonate
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What phylum is the Chaos in?
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Amoebazoa
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What is the role of the metacercaria in trematodes?
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They allow trematodes to remain stagnant in intermediate hosts until they have been comsumed by the primary host.
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What material normally forms the covering of Radiozoa?
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silica
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List the order of malarial stages, starting with gemetocytes
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Gametocytes, ookinetes, sporozoite, merozoites
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In Porifera, what is the difference between and osculum and an ostium?
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Osculum is the main hole in which water exits. Ostia are the small pores where water enters.
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What are gemmules, and where are they found? (which Phylum?)
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Gemmules are asexually produced resistant buds (the dormant structure) of Porifera
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Name the three classes of Porifera, and talk about what distinguishes them
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1.Calcarea -- have all three shapes and only have CaCO3 in spicules
2.Demospongiae -- almost all leukonoid and have spongin or silica, but NEVER CaCo3) 3.Hexactinellida -- either leukenoid or synconoid, which spicules of silica |
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Name the tree types of tenticles and their functions in the Physalia (Hydrozoa, Siphonophora)
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Dactylozooid: grabbing
Gastrozoids: eating Gonozoids: mating |
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What is the locomotion like for Dinozoa?
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two flagella -- one extends backward to propell the animal; the other encircles the body in a transverse groove, causing it to rotate
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In cnidaria, what is the tube where the mouth is called?
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menubrium
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In Chaos, where is cytoplasmic streaming initialized?
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transition of the cytoplasm goes from ectoplasm (more gel) to endoplasm (more fluid)
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How are cnidocytes, cnidocils, and nematocysts related?
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Cnidocytes are the cells in which nematocysts are locates, which fire if the cnidocil is stimulated (through trigger)
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In trematodes, what is the difference between a redia and a cercaria?
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The redia is a larval stage in the trematode life cycle which develops into another anatomically distinct larval stage, the cercaria, which leaves the mother.
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