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Phylum Porifera
Everything covered in Porifera lab
7
Zoology
Undergraduate 3
09/30/2016

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Cards

Term
What is an asconoid canal system?
Definition

Simple Design Water filtration system for sponges

has least amount of surface area

Term
What is a leuconoid canal system?
Definition

Extreme design water filtration system for sponges

greatest amount of folding

greatest surface area

Term
What is a syconiod canal system?
Definition

Moderate design water filtration system for sponges

is a bit more complex with more surface folding

more efficient than asconoid 

Term

What is a gemmule?

 

Definition
Asexual reproductive units consisting of a mass of food-filled mesenchyme cells surrounded by a heavy protective coat strengthened with spicules
Term
Which Spicule dissolve when acid is added?
Definition
Calcareous Spicules. Siliceous spicules do not.
Term
What is spongin and who has it?
Definition

Horny elastic substance

Demonspongiae have it

Term
What are the classes in Phylum Porifera
Definition
Class Hexactinellida, class calcaria, class demospongiae
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