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KevMichel

Zoology

Colonial Hypothesis Single Cell that keeps close Contact with one another.
MultiCellular Means multiple cells in one. Only 10 percent on Earth
SYNTICAL HYPOTHESIS Formation of plasma membrane in this cell could produce multicellular cell
PHYLUM PORIFERA The Sponges, Loose Organized Cells, Vary in size and Shape, Asymmetrical, No tissue or organs.
Pinacocytes Outer Line of sponge
Mesenchyme Cells Moves around the layer in Amoeboid action Specialized for reproduction transport food and store food
Choanocytes Flagella Cells that swish water through the sponge
Ascon Simplest and least common form.
Sycon - folded sponge wall
Leucon - extensive branched canal
Sponge Nutrition Sponges eat particles that are suspended in the water that passes through them – Bacteria – Algea – Protists – Suspended organic matter • Pinacytes phagocytize larger food particles • Absorb nutrients via active transport
Created by: 725825214
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