-
Porifera
body plan
symmetry
layers
phylogeny
character
habitata
- sponge
- none
- 2 of loose unspecialized cells
- 1
- like a colony
- h2O
-
Cnideria
body plan
symmetry
layers
phylogeny
character
habitat
- 1:sessile polyup, medusa
- Radial-dipoblastic
- 2
- nematocysts-stinging cells, carnivorous
- H20
-
Platyhelminthes
body plan
symmetry
layers
phylogeny
character
habitat
- 1:aceolomates
- bilateral
- 3 layers-tripoblastic
- 3
- flat, unsegmented worms
- H20
- planarians(turbellaria) blood flukes(trematoda) ext fish parasites(monogenea)
- tapeworm(cestoda)
-
Nematoda
body plan
symmetry
layers
phylogeny
character
habitat
- 2: cylinder w/ tapered ends pseudoceolomates
- bilateral
- 3 layers
- 4
- round unsegmented worms
- hookworm, heartworm,pinworm
-
Annelida
body plan
symmetry
layers
phylogeny
character
habitat
- ceolomates, complete digestive system
- bilateral
- 3 layers tripoblastic
- 5
- breathe across body surface, segmented worms, metanephridia excretion(liver)
- H2O and land
-
Mollusca
body plan
symmetry
layers
phylogeny
character
habitat
- foot, viscelar mass, mantle: radula for feeding
- bilateral
- 3 layers
- 6
- soft unsegmented mantle Gastropoda(largest class, move by rippling along food)Bivalva(clams oysters musscles scallops, gills, suspension feeders) Cephalopoda(inteligent squid and octopus, closed circulatory system) Polyplacophora(chitons, rough external shell)
- h20 and land
-
Arthropoda
body plan
symmetry
layers
phylogeny
character
habitat
- jointed appendages-allow for flight, hard exoskelaton
- bilateral
- 3 layers
- 7
- open circulatory system
- Trilobites(extinct segmentation) Chelicerates(spiders scorpions ticks mites:book lugs cephalothora and abdomen) Diplopoda(millipeds 2/segment) Insecta(head, throax, abdomen, malphigian tubes) Incomplete:young look like old grasshoppers Complete:larvae diff from froomfly cacoon dif from moth
-
Echinodermata
body plan
symmetry
layers
phylogeny
character
habitata
- Deutrosomes
- radial classified with bilateral
- 3 layers
- 8
- spiny skin:starfish, sea stars, sand dollars, sea cucumbors
- h2o
-
Chordata
body plan
symmetry
layers
phylogeny
character
habitata
- Deutrosomes, vertebraes
- bilateral
- 3 layers
- 9
- dorsal nerve cord
- lands
-
Protosomes
- mouth forms first, 4 cells on top and bottom dont line up,
- morula-spiral cleavage
- fate is determined early-loose totipotentcy
- ceolem-schizoceolos-splot ceolem
-
Deutrosomes
- echinoderms and chordates
- radial cleavage
- interminate cleavage
- blastopore forms anus
- ceolem begings formation as outpockets from gut-entero coelous
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