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BASAL ANIMAL GROUPS
Asymetrical or radially symetrical
•1or 2 tissue layers
•Acoelomates
•Sponges
•Cnidarians
•Ctenophores
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Asymetrical or radially symetrical•1or 2 tissue layers•Acoelomates•Sponges•Cnidarians•Ctenophores
Basal Animal groups
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Sponges
•Similar to choanoflagellates
•Choanoflagellates: protist species
- •Both use similar flagellated cells
- to move food
•Asymmetrical
•1 tissue layer – epithelium
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Choanoflagellates
•protist species
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Protist Species
Choanoflagellates
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CNIDARIANS
•Jellyfish, hydra, sea anemome
•Diploblastic
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•Jellyfish, hydra, sea anemome
•Radial
symmetry
•Diploblastic
CNIDARIANS
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CTENOPHORES
•Comb jellies
•Radial symmetry
•Diploblastic
•Swim with rows (combs) of cilia
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•Comb jellies
•Radial symmetry
•Diploblastic
•Swim with rows (combs) of cilia
CTENOPHORES
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BILATERAL ANIMALS
•Triploblastic
•Almost all coelomates
•2 groups
–Protostomes
–Deuterostomes
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•Triploblastic
•Almost all coelomates
•2 groups
–Protostomes
–Deuterostomes
Bilateral Animals
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PROTOSTOMES
–Lophotrochozoans
–Ecdysozoans
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–Lophotrochozoans
–Ecdysozoans
Protostomes
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•Most characterized by lophophore feeding structure and trochophore larval form
LOPHOTROCHOZOANS
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LOPHOTROCHOZOANS
•Most characterized by lophophore feeding structure and trochophore larval form
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lophophore
Suspension feeding
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Suspension feeding
lophophore
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trochophore
larvae swim and feed
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4 Phyla for lophotrochozoans
–Rotifers
–Platyhelminths
–Annelids
–Molluscs
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–Rotifers
–Platyhelminths
–Annelids
–Molluscs
4 phyla for lophotrochozoans
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Rotifers
- lophotrochozoan phyla
- They are small aquatic filter feeders
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lophotrochozoan phylaThey are small aquatic filter feeders
Rotifers
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Platyhelminths
lophotrochozoan phyla
flatworms (this cute little things with the eyes close together)
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lophotrochozoan phyla flatworms (this cute little things with the eyes close together)
Platyhelminths
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Annelids
- lophotrochozoan phyla
- segmented worms (think leaches)
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lophotrochozoan phyla
segmented worms (think leaches)
Annelids
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MOLLUSCS
• 3 major classes
–Bivalves – clam, oyster
–Gastropods – snail, slug
–Cephalopods – squid, octopus
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Bivalves
- Class of molluscs
- –clam, oyster
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Class of molluscs
–clam, oyster
Bivalves
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Gastropod
- Class of molluscs
- –
- snail, slug
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snail, slug Class of molluscs
Gastropod
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cephalopods
Class of molluscs Octopus, squid and total favorite
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Class of molluscs Octopus, squid
Cephalopods
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ECDYSOZOANS
- •Characterized by molting – shed exoskeleton or external covering
- 2 phyla
- Nematodes
- Arthropods
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•Characterized by molting – shed exoskeleton or external covering
Ecdysozoan
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ARTHROPODS
- 4 major phyla
- –Myriapods –
- millipedes, centipedes
- –Chelicerates –
- spiders, scorpions, ticks
- –Insects –
- beetles, butterflies, flies, ants
- –Crustaceans –
- lobsters, crabs, barnacles
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–Myriapods –
millipedes, centipedes
–Chelicerates –
spiders, scorpions, ticks
–Insects –
beetles, butterflies, flies, ants
–Crustaceans –
lobsters, crabs, barnacles
Arthropod phyla
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Myriapods
- Arthropod phyla
- millipedes,
- centipedes
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Chelicerates
- spiders,
- scorpions, ticks
- Arthropod phyla
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spiders,scorpions, ticks
- Chelicerates
- Arthropod phyla
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beetles,
butterflies, flies, ants
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Insects!
- Arthropod phyla
- beetles,butterflies, flies, ants
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lobsters,
crabs, barnacles
- Arthropod phyla
- crustacean
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crustacean
- Lobsters, crabs, barnacles
- Arthropod phyla
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Which phylum has the most species
Arthropods
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DEUTEROSTOMES
•2 major phyla
–Echinoderms
–Chordates
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•2 major phyla
–Echinoderms
–Chordates
Deuterostomes
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ECHINODERMS
- (deuterostomes) Has radial symmetry and exoskeleton
- 2 classes
- Sea stars
- Sea urchins
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(deuterostomes) Has radial symmetry and exoskeleton
2 classes
Sea stars
Sea urchins
Echinoderms
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CHORDATES
- Have notochord, muscular tail, dorsal nerve cord, and gill slits
- 1 Sub phyla
- Vertebrates
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Have notochord, muscular tail, dorsal nerve cord, and gill slits1 Sub phylaVertebrates
Chordates
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Vertebrates
- Have vertebrae ( Bony or cartilaginous spine structure)
- Have cranium (Case for brain)
- 5 classes classes
–Amphibians
–Reptiles
–Mammals
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5 vertebrate classes
•Major classes
–Amphibians
–Reptiles
–Mammals
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–Cartilaginous fish
–Ray-finned fish
–Lobe-finned fish
–Amphibians
–Reptiles
–Mammals
5 vertebrate classes
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Cartilaginous fish
- sharks
- and rays (cartilage skeleton)
- vertebrate class
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•sharks
and rays (cartilage skeleton)
Cartilaginous fish (vertebrate class)
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Ray-finned fish
- (vertebrate)
- •tuna, trout, goldfish (bone skeleton)
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(vertebrate)•tuna, trout, goldfish (bone skeleton)
Ray-finned fish
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Lobe-finned fish
- vertebrate
- Have bones in fins
•coelacanths, lungfish (bone skeleton)
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vertebrate
Have bones in fins•coelacanths, lungfish (bone skeleton)
Lobe finned fish
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AMPHIBIANS
- (vertebrates)
- •Live in aquatic and terrestrial habits cause their skin will dry out
•Limbs that support terrestrial movement
•Frogs, salamanders
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(vertebrates)•Live in aquatic and terrestrial habits cause their skin will dry out•Limbs that support terrestrial movement•Frogs, salamanders
Amphibians
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REPTILES
•Scaly skin
•Lay amniotic (multi-membrane) eggs
•Turtles, lizards and snakes, crocodiles, birds
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•Scaly skin•Lay amniotic (multi-membrane) eggs•Turtles, lizards and snakes, crocodiles, birds
Reptiles
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MAMMALS
•Hair
•Endothermic – generate internal heat
•Mammary glands – produce milk for young
3 groups
–Monotremes
–Marsupials
–Eutherians
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•Hair •Endothermic – generate internal heat•Mammary glands – produce milk for young3 groups–Monotremes–Marsupials–Eutherians
Mammals (vertebrates)
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Monotremes
•Lay eggs
- •Platypus, echidna
- (weird that there are only 2), really.
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•Lay eggs•Platypus, echidna
Monotremes
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MARSUPIALS
- •Offspring born relatively underdeveloped and stay attached to mother after born (in pouch)
- Poorly developed placenta
•Kangaroo, opossum
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•Offspring born relatively underdeveloped and stay attached to mother after born (in pouch)Poorly developed placenta•Kangaroo, opossum
Marsupial
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eutherians
•Well developed placenta
•Rats, whales, bears, etc
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•Well developed placenta•Rats, whales, bears, etc
Eutherians
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