Kingdom Animalia

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Hi, all you critters out there . Thats
right you, in Zoology class
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• Today we are going to soak up a lot of
  information about
• sponges !!!!!

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Is there symmetry? What is the habitat? Is
there a backbone? Mode of nutrition? Am I
really an animal?
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Kingdom- Animalia
Phylum Porifera

• the sponges

Like these?
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Sponges are

• multicellular invertebrates

• mostly marine

• and lack definite tissues

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• Sponges
• come in a variety
• of colors shapes and sizes

• are sessile

• and lack symmetry

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  Branching Tube
Sponge  
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Sponges are filter feeders
Choanocytes ( collar cells) make a continuous
water current into the sponge
Small phytoplankton are filtered out as food
amoebocytes engulf food particles
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General morphology
pore choanocyte
     
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Osculum A larger opening to exit water
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Bath Sponge
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Sulfur Sponge
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