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Porifera
What peticular character do all animals except for sponges have?
"True"/specialized tissues
What word describes the movement of sponges? What does it mean?
Sessile; they do not move.
How do sponges feed? What kind of digestion do they have?
Sponges are filter feeders.
They are the only animals that have intracellular digestion.
Most are marine, but some are freshwater
How many layers of cells to sponges have? What separates them?
Two; Mesoglea
What is a sponge's inner layer of cells made of? What do they do?
Choanocytes (collar cells)- move water through pores in sponges body
What is a sponge's outer layer of cells called?
Epidermis
What is the mesoglea?
The gelatinous, protein matrix between cell layers where amoebocytes "crawl around"
What is another word for mesoglea?
Mesohyl
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