cladogram of animals
DESCRIPTION
Cladogram of Animals. Phylum Porifera. Sponges – the simplest animal. Porifera. most ancient group of animals (500 mya ) multicellular heterotrophic a few specialized cells a symmetrical invertebrate. Porifera. means “pore bearers” since they have tiny openings all over body - PowerPoint PPT PresentationTRANSCRIPT
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Cladogram of Animals
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Phylum PoriferaSponges – the simplest animal
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Porifera
• most ancient group of animals (500 mya)• multicellular• heterotrophic• a few specialized cells• asymmetrical• invertebrate
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Porifera
• means “pore bearers” since they have tiny openings all over body
• filter feeder - eat tiny, floating organic particles and plankton
• food and oxygen in, waste out• sessile - live permanently attached to a
location in the water
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Phylum CnidariaJellyfish, sea fans, sea anemones, hydras, & corals
Lions mane jellyfish - grows up
to 8ft acrossthe tentacles can be over 100ft long
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Cnidaria• aquatic organisms• radial symmetry• invertebrate• central mouth• coral polyps build calcium
carbonate structures coral reefs
• stinging cells (nematocysts) are arranged on tentacles and used to capture food (small planktonic animals)
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Cnidaria• some individual, some colonial
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Use Ch 26 and write the correct phylum and symmetry.
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Use Ch 26 and match the correct phylum, picture and description.