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14 Cards in this Set
- Front
- Back
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Ascon body type |
Ascon means cup. The sponge is circular, hollow. Water enters the ostia to the spongocoel to the osculum. |
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Sycon body type |
Sycon means fig. The sponge looks squiggly for surface area. Water enters the ostia to incurrent canal through a prospyle into radial canal (lined with chaoanocytes) then enters apopyle to spongocoel to osculum. |
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Leucon body type |
Leucon means white. The sponge has no big empty space inside. Water enters the ostia to incurrent canals to choanocyte chambers to excurrent canal to the osculum. |
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Pinacocytes |
outermost cells of the sponge |
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Choanocytes |
feeding cells inside the sponge |
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Mesenchyme |
cells all over the sponge that are used for maintenance, repair, growth, reproduction, maintaining the skeleton, and immunity |
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Spongin |
extracellular part of the skeleton that is flexible |
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Spongocoel |
space inside the sponge that gives it flexibility -hydrostatic skeleton |
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Spicules |
small, rigid rods of the skeleton that maintain the shape of the sponge |
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Ostia/Dermal Pore |
pores found all over the surface that allow water into the sponge |
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Incurrent canals |
water flows from this to the radial canal |
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Radial canals |
lined with choanocytes |
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sexual reproduction |
spring/summer motile larvae sedentary adults -reduces competition between the adults via the larvae settling in a new area |
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asexual reproduction |
fall via gemmules that are resistant to cold so they becomes adults in the spring and perform sexual reproduction |
