Phylum Porifera: Classes Demospongiae, Hexactinellida, Calcarea

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Questions and Answers

Qual clase de spongiae es caracterizate per spicules de silica oxide?

  • Class Demospongiae (correct)
  • Class Hexactinellida (correct)
  • Ninguno
  • Class Calcerea

Qual nomen del classe de spongiae que contiene sponges calcareous?

Class Calcerea

Le ____ es un exemplo de sponges de vidro.

Class Hexactinellida

Associa le classes de spongiae con lor characteristicas principal:

<p>Class Demospongiae = Horny sponges, elastic sponges Class Hexactinellida = Glass sponges with 6 rayed spicules Class Calcerea = Calcareous sponges with calcium carbonate spicules</p> Signup and view all the answers

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Study Notes

Class Demospongiae

  • Comprede sponges horny e elastic
  • Structure corporal leuconoid, que resulta in un maior complexitate
  • Includa sponges fluffy, frequentemente usate como sponges de banho
  • Presenta spicules de silica oxide

Class Hexactinellida

  • Conocite como sponges de glass
  • Exemplare notabile: Venus Flower Basket (Buplicitella aspangillum)
  • Anche presenta structure leuconoid
  • Caractere distinctive: spicules con 6 raye
  • Spicules compose de silica oxide

Class Calcerea

  • Comprede sponges calcareous
  • Presenta tres tipos de structure corporal: asconoid, syconoid, e leuconoid
  • Visualisation de spicules e materia bruna con apparente rock
  • Spicules compose de carbonate de calcio

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