figure co 7
DESCRIPTION
Figure CO 7. Simple, multicellular animals No organs or true tissues Asymmetrical Filter feeders. Types of cells in sponges. Water flow through a sponge. Reproduction in sponges. Reproduction in Sponges. Asexual Budding Gemmules (packets of cells in a resistant coating - PowerPoint PPT PresentationTRANSCRIPT
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Figure CO 7
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Simple, multicellular animalsNo organs or true tissuesAsymmetricalFilter feeders
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Types of cellsin sponges
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Water flowthrough a sponge
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Reproduction in sponges
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Reproduction in Sponges
AsexualBuddingGemmules (packets of cells in a resistant coating
Sexual reproductionHermaphroditicSperm or eggs released at any time/spongeInternal fertilizationCiliated larvae produced that swim in water
Settle on hard surface and create new sponge
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The carnivorous “velcro”sponge (Family Cladorhizidae)
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Hermit crab sponges
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Hermit crab sponges reproduce with gemmules, spore-like structures, resistant to being dried out.
Hermit crabs prefer shells without sponges on them.
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“Boring sponge” on a scallop shell. Major decomposer of calcium carbonate in ocean.
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Phylum Cnidaria
Nematocysts (stinging cells)
Radial symmetry
Polyp and medusa form
Reproduce Asexually (budding)or Sexually (sperm and eggs)Planula larvae metamorphoses into adult
form.
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Phylum CnidariaFeeding
carnivorous (use nematocysts)
and/or
photosynthetic (corals, anemones)cells contain zooxanthellae, symbiotic algae in the phylum Dinoflagellates
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Phylum Cnidaria
4 major groups:
Anthozoans (corals, anemones, sea pens)
Hydrozoans (siphonophores, hydroids, fire corals, many medusae)
Cubozoa (box jellyfish)
Scyphozoa (Jellyfish)
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Figure 7.5
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Phylum Cnidaria
Hydroids- Siphonophores (above)(portuguese man-o-war)- Feathery hydroids(picture at right)
Polyp form is dominant.
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Phylum Cnidaria
Box Jellyfish(Class Cubozoa)
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Phylum Cnidaria: Jellyfish (medusa form only)
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Phylum Cnidaria: Anthozoans corals and anemones, anemone shown above) (polyp form is dominant)
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Phylum Cnidaria: Anthozoans (corals and anemones, coral shown above) (polyp form is dominant)
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Figure 14.24
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Figure 14.25
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Figure 14.26
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Figure 7.11
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Phylum Annelida (segmented worms)Most marine annelids are polychaetes
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Polychaetes living in tubes“tube worms”
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Living polychaete
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Feeding modes
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Figure 7.29
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Snail and radula
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Figure 7.21d
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Figure 7.20
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Figure 7.25
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Figure 7.24
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Phylum Mollusca
Snails and limpets (Gastropods)
Mussels, clams, scallops, oysters (Bivalves)
Octopus, squid, cuttlefish (Cephalopods)
Chitons (Polyplacophora)
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What are 3 examples of radially-symmetricanimals that live in the sea?
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What are 3 examples of radially-symmetricanimals that live in the sea?
What is an example of a radially-symmetric animal that lives on land?
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What are 3 examples of filter-feeding animals that live in the sea?
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What are 3 examples of filter-feeding animals that live in the sea?
What do they eat?
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What are 3 examples of filter-feeding animals that live in the sea?
What do they eat?
What is an example of a filter feeding animal that lives on land?