Whats the common name of this organism PowerPoint PPT Presentation

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Title: Whats the common name of this organism


1
Whats the common name of this organism?
2
Sponge
3
What is the phylum?
4
Porifera
5
Sponges are at the ______ level of organization
6
Sponges are at the cellular level of
organization
7
What is the name for excurrent pores?
8
Osculum
9
What is the function of choanocytes?
10
Choanocytes form much of the sponge body and
function in filter feeding and intracellular
digestion. Choanocytes help distinguish phylum
porifera.
11
What type of symmetry do sponges have?
12
Sponges are either asymmetrical or radially
symmetrical.
13
Incurrent openings or pores are termed_______.
14
Incurrent openings or pores are termed ostia.
15
Sponges have an exoskeleton formed of what?
16
Spongin--spongy fibers of a protein
materialor2. Spicules--rigid crystalline
structures made of calcium or silica
17
The central cavity of a sponge is called what?
18
Spongocoel
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