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Terms in this set (18)
The _____ species of sponges are predominantly marine with only _____ species found in freshwater
Organisms that attach themselves to rocks and substrates wight he sac-like body supported by the water.
Where does support come from in a sponge
inorganic or organic spicules
the three classes of sponges are classified according to whether their spicules are made up of ___, ____, or ___
calcium carbonate, silica, or organic fibers
Upper end for attachment
Upper end with opening, surrounded by long spicules
Sponges obtain nutrients and oxygen from the surrounding water by causing water currents to enter the numerous pores called ____ is surrounded by pond spicules
Process in which cells in sponge body take up minute particles of food and oxygen.
Large opening at the center of the sponge cross section, runs the entire length of the sponge
Allow water to enter incurrent canals
Adjacent to each incurrent canal, separated to it by a layer of cells
How water travels through the canals
Special cells that line the radial cell and have flagella
Produce water currents that bring in food particles and oxygen, and aid in removes small food particles (plankton) from water.
Flagella on Choanocytes
Movement of the remaining water and indigestible material along the radial canals
pass along the radial canals to the spongocoel and then out through the osculum
How do sponges reproduce?
both sexually and asexually (by budding)
In sponges eggs or developing embryos will be seen a the...
a hollow ball of cells that surround a vanity called the Blastocoel
THIS SET IS OFTEN IN FOLDERS WITH...
13: Class Polyplacophora
13: Class Gastropoda
BioLab112 - Exercise 11 - Phyla Porifera & Cnidaria
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