Porifera Sponges

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CHAPTER 33 INVERTEBRATES
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Porifera Sponges
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Porifera Sponges
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Porifera Sponges-osculum, choanocytes-limits size
of food particles , must fit into the collar
extra cellular and intracellular digestion
amoebocytes, hermaphrodites, reaggregation,
spongocoels
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Porifera Sponges
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Porifera Sponges
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Venus Flower Basket Sponge
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Porifera Sponges
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Porifera Sponges
Spicules-skeletal components of sponges composed
of calcium carbonate, silica, or a protein called
spongin
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Porifera Sponges
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Cnidarians-hydra and jellyfish
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Cnidarians-hydra and jellyfish
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Cnidarians-hydra and jellyfishnerve net
nonpolarized
Polyp
Medusa
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Cnidarians-hydra and jellyfish
cnidocytes with nematocysts
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Nematocyst
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Cnidarians-colonial hydra Hydrozoansectoderm,
endoderm, radial symmetry, polyps, medusa,
cnidocytes with nematocysts
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Cnidarians-jellyfish Scyphozoans
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Cnidarians-jellyfish
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Cnidarians-sea anemone Anthozoans
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Cnidarians-sea anemone Anthozoans
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Cnidarians-sea anemone Anthozoans
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Cnidarians-Coral Anthozoans
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Cnidarians-corals Anthozoans
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Cnidarians-coral Hydorzoan
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Cnidarians-Scyphozoansjellyfish
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Cnidarians-hydra
Colonial hydroid
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Cnidarians- sea anemone Anthozoans
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Cnidarians-Hydrozoan- Portuguese Man-of-War
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Cnidarians-Hydrozoans-Portuguese Man-of-War
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Cnidarians-Hydrozoan-Portuguese Man-of-War
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Ctenophora-comb jellies-long tentacles, combs are
rows of fused cilia, some are bioluminescent
colloblasts-cells containing vacuoles with a
sticky thread-like protein that burst open
and captures food particles
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Ctenophora-comb jellies
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Ctenophora-comb jellies
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Ctenophora-comb jellies
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Ctenophora-comb jellies
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Ctenophora-comb jelliesFused cilia
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Ctenophora-comb jellies
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Protostomia Acoelomates Platehelminthes Pseudo
coelomates Rotifers Nematoda-ecdysozoa Coelom
ates Lophophorates Nemertea Mollusca Annel
ida Arthropoda-ecdysozoa Deuterostomia Coelomat
es Echinodermata
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Platyhelminthes-flatworms
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Platyhelminthes-flatworms incomplete digestive
system, flame cells water balance only,
cephalization, nerves, internal fertilization
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Platyhelminthes-flatworms
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Life Cycle of a Blood Fluketriploblastic with
mesoderm, acoelomic, incomplete digestive system,
flame cells water balance only, cephalization,
nerves,
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Platyhelminthes-flatworms-fluke
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Platyhelminthes-flatworms- tapeworm-Cestoidia
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Platyhelminthes-flatworms- tapeworm
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Platyhelminthes-flatworms- tapeworm
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Platyhelminthes-flatworms- tapeworm
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Rotifers-have a pseudocoelom reproduce by
parthenogenesis, crown of cilia for food capture
pull food into mouth which has jaws, first
complete digestive tract
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Rotifers
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Rotifers
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Rotifers
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Rotifers
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Lophophorates-lophophore-food capture and gas
exchange,embryonic development like a
deuterostomesphoronid
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Lophophoratesbryozoans
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Lophophorates Bryozoans
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Lophophorates brachiopods
Lophophore
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Lophophorates
Lophophorates
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Nemertea-ribbon worms First simple closed
circulatory system, complete digestive system
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Nemertea-ribbon worms
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Nemertea-ribbon worms probosis worm
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Mollusca-foot, visceral mass, mantle, mantle
cavity, radula
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Mollusca chiton
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Mollusca chiton
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Trochophore Larva
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Flame cell found in Platyhelminthes pulls in
water and pumps it out with cilia no
concentration of waste. Protonephridia found in
Molluska several flame cells with some transport
of good substances out of the tube loses lots of
water little concentration of waste
Protonephridia flame cell
metanephridia
Metanephridia take in coelomic fluid and reabsorb
the nutrients and water which are then picked up
by the associated blood vessels thus they
concentrate the nitrogenous waste found in
Annelids
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Mollusca gastropoda-torsion-vascularized mantle
cavity acts as crude lung
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Mollusca gastropodatorsion-vascularized mantle
cavity acts as crude lung
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Mollusca gastropoda
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Mollusca gastropoda-sea slug
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Mollusca gastropoda
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Mollusca gastropoda
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Mollusca gastropoda
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Mollusca Bivalvia
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Mollusca Bivalviagillsfilter feedersopen
circulatory systemloss of cephalization
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Mollusca Bivalvia
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Mollusca Bivalvia
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Mollusca Bivalvia
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Mollusca Cephalopoda-jet propulsion closed
circulatory system, well developed nervous system
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Mollusca Cephalopoda
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Mollusca Cephalopoda
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Mollusca Cephalopoda
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Mollusca Cephalopoda
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Mollusca Cephalopoda
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Mollusca Cephalopoda
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Mollusca Cephalopoda eggs of giant octopus
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Mollusca Cephalopoda
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Annelida-segmented worms- Oligochaeta-earthworms
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Annelida-segmented worms- segmentation, closed
circulatory system, cerebral ganglia and nerve
cords, metanephridia,Oligochaeta-earthworms
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Annelida-segmented
worms-Polychaete Polychaete
Hirudinea-marine bristle tube worm
leechesworms
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Annelida-segmented worms-
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Annelida-segmented worms- Respiration Porifera-gt
rotifera-Through body surface Lophophorates
through tentacles w/ coelomic fluid Annelids
through highly vascularized epidermis and
parapodia Molusca through gills or vascularized
mantle cavity Arachnida book lungs Insecta
tracheal system
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Annelida-segmented worms-Hirudinea
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Annelida-segmented worms-Oligochaeta
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Annelida-segmented worms Polychaeta
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Annelida-segmented worms-Hirudinea
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Annelida-segmented worms
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Annelida-segmented worms
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Annelida-segmented worms
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Nematoda- roundworms a free-living type
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Nematoda-roundworms
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Parasitic nematode trichinosis form cysts in pork
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Nematoda Roundworms
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Nematoda Roundworms
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Nematoda Roundworms
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Nematoda Roundworms
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Nematoda Roundworms
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Nematoda Roundworms
Nematoda Roundworms Loa-loa worm
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Arthropoda
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Trilobite
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Horseshoe crabs
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Arachnida parasitic mites in a Scorpion
honey bees trachea
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Arthropoda Arachnida
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Arthropoda Arachnida
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Arachnida
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Arachnida
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Arachnida
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Arachnida
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Arachnida
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Arachnida
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Arachnida
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Arachnida
Arachnida
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Chilopoda
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Chilopoda
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Chilopoda
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Diplopoda-millipedes
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Diplopoda
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Diplopoda
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Diplopoda
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Insecta
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Insecta
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Insecta-complete metamorphosis
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Insecta
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Insecta
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Incomplete Metamorphosis
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Complete Metamorphosis
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Crustacean
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Crustacean
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Crustaceanbarnacles
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Crustacea
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Crustacea
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Crustacea
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Echinodermata
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Echinodermata
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Echinodermata
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Echinodermata
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Echinodermata
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Echinodermata
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Echinodermata
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Regeneration
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Echinodermatasea cucumber
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