Phylum: Porifera

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Phylum Porifera

• Phylum Porifera
• Sponges
• Por Pore
• Fere Bearing
• Body Plan

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7 Characteristics

• 2. Response
• Specialized Cells
• Some cells secret toxic substances
• Some of these toxic substances are used to fight
  cancer

• 1. Feeding
• Filter Feeders
• Plankton, Algae, Protists, Bacteria
• Digested by collar cells (choanocytes)
• Amoebocyte carries nutrients to all cells

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• 3. Reproduction
• Asexually
• Budding
• Buds Fall Off
• Live Independent
• Sexually
• See illustration

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7 Survival Characteristics Cont.

• 4. Movement
• Sessile as adults
• Only move as free swimming larvae
• 5. Excretion
• Waste released out of cells by diffusion

• 6. Respiration
• Require oxygen for each cell
• Oxygen diffuses into cells
• 7. Circulatory System
• Diffusion Amoebocytes

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Phylum Porifera
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Phylum Cnidaria

• Phylum Cnidaria
• Stinging
• Cnid nettle
• Body Plan

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• 1. Feeding
• Carnivores
• Sting Kill Prey
• Stinging Cells
• Cnidocytes
• Nematocyst

• 2. Response
• Nerve Net
• Evenly distributed throughout body
• Coordinates body movements!

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• 3. Reproduction
• Sexual
• Release egg sperm
• Sperm fertilizes egg
• Fertilized egg becomes free swimming larvae
• Attaches to surface
• Becomes polyp
• Develops Medusa
• Begin cycle again...

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• 6. Respiration
• Diffusion
• 7. Circulation
• Diffusion

• 4. Movement
• Jellyfish
• Free Swimming
• Jet Propulsion
• Sea Anemone
• Sessile as adults
• 5. Excretion
• Remove waste out mouth
• Undigested material

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• Phylum Cnidaria
• Class Hydrozoa
• Hydro Water
• Zo Animal
• Examples
• Obelia Colony
• Man 0 War
• Hydra
• 3700 Species

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• Phylum Cnidaria
• Class Scyphozoa
• Scyph Cup
• Zo Animal
• Examples
• Jellyfish (poisonous)
• 200 Species

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• Phylum Cnidaria
• Class Anthozoa
• Anth Flower
• Zo Animal
• Examples
• Sea Anenome
• Coral

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