BIO 2135 Quiz: Porifea Keywords

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Aboral side: opposite the end or side on which the mouth is located. Amebocyte: a cell in a multicellular organism that moves using amoeboid movement. Amebocytes often are involved in transporting materials, defending against invading organisms, or cleaning up dead debris and materials. Gets the food vacuole from the choanocyte and distributes it throughout the organism. Apomorphies: a relatively derived or advanced or unique character state (cf. autapomorphy, synapomorphy, plesiomorphy, symplesiomorphy). Aquiferous system: this type of system is found in sponges and consists of the canals and chambers through which water flows. Water is pumped through the system by the choanocytes one of the atapomorphies for the porifera phylum the simplest aquiferous system is in the asconoid sponges slightly more complex is in the synconoid. Most complex is the leuconoid aquiferous system. Archeocyte: cell capable of a variety of functions or of differentiating into a variety of cell types with different functions.