Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
13 Cards in this Set
- Front
- Back
|
Genus: Syconoid |
Phylum: Porifera Class: Calcarea ( Calcium Based) Genus: Sycon Canal type: Radial |
|
|
Osculum |
Opening of the spongocoel |
|
|
Spicules |
Needle like structures, made of calcium or silica |
|
|
apopyle |
Opening into the radial canal of syconoid sponge |
|
|
Choanocyte |
Flagellated feeding cell |
|
|
Spongin |
fibrous support structure |
|
|
Class: Calcarea |
Spicules: Calcium Carbonate Canal systems: Ascynoid, Syconoid, Leuconoid Habitat: Marine Spongin: none |
|
|
Class: Hexactinellida |
Spicules: Six rayed with siliceous Canal Systems: Syconoid or Leuconoid Spongin: none |
|
|
Class: Demospongiae |
Spicules: Silicious, not 6 rayed Habitat: mostly marine Spongin: only one with spongin |
|
|
Ascinoid |
Choanocytes line the spongocoel |
|
|
Syconoid |
Choanocytes line the radial canal |
|
|
Leuconoid |
Contains choanocyte pockets, most efficient feeder
|
|
|
Order: Porifera |
Classes: demospongiae, Hexaxtinellida, Calcarea ` |
