Figure CO 7

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Figure CO 7
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Simple, multicellular animals No organs or true
tissues Asymmetrical Filter feeders
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Types of cells in sponges
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Water flow through a sponge
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Reproduction in sponges
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Reproduction in Sponges
Asexual Budding Gemmules (packets of cells in a
resistant coating Sexual reproduction Hermaphrod
itic Sperm or eggs released at any
time/sponge Internal fertilization Ciliated
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 Cnidaria
Feeding 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-symmetric animals
that live in the sea?
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What are 3 examples of radially-symmetric animals
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?