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Final

Final_Exam_-_Porifera.doc

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Department
Biology
Course
BIO2135
Professor
All Professors
Semester
Winter

Description
PoriferaCellulargradeoforganizationMulticellular animalsAnimals organized at the cellular grade They lack tissues evidence of this is the absence of a basement membrane or tight cell junctions between the cellsOuter layer of pinacoderm cells It is not a tissue only a layer of cells and a layer of choanoderm The layer of choanocyte cells lining the different parts of the aquiferous system in a sponge in the asconoid architecture the spongocoel in syconoid the radial canals and in leuconoid sponges the choanocyte chambers cells lining the spongocoel These are separated from each other by the mesohylbut remember these are only layers not tissues Asconoid sponge Architecture
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