-
-
-
-
-
porifera
- planktonic larvae
- gelatinous matrix
- choanocytes
- gemmules
- spicules
- cells- epithelial, amoeboid, collar
-
cnidarian
- hydrostatc skeleton
- nematocysts
- gastrovascular vacity
- polyp- sessie
- meduse- swimming
- cnidocytes- stinging cells. cnidocil- trigger
- tentacles,
- nerve net
-
hydrostatic skeeton
cnidarians
-
-
-
-
-
cnidocil
- trigger of stinging cells
- cnidarians
-
-
-
nephridia
- annelida
- kidneys for excretion
-
annelida
- oligocheates
- polychaetes
- nephridia
-
mollusca
- radula
- hemocoel- open circulatory system
- trochophore
- cephalopods
- gastropods
- bivalves
-
-
hemocoel
- open circulatory system
- mollusca
-
trochophore
- mollusca
- type of free-swimming planktonic marine larva with several bands of cilia.
-
-
-
-
arthorpods
arachnids, myriapods (centipedes, millipedes) insects, crustaceans
- open circulatory system
- exoskeleton
- largest
- body divided into functional regions
- complex sensory abilities
-
arachnids
- arthropods
- spiders, scorpions, ticks and mites
-
myriapods
- arthropods
- many footed
- centepedes, millipedes
-
insects
- arthropods
- largest group
- 3 pairs of legs
- specialized appendages/mouthparts
-
crustaceans
- arthropods
- "shell bearing"
- lobters, crabs, barnacles
-
nematodes
- hookworm
- pinworm
- intestingal roundworm- acscaris
- whipworm
- trichinella
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-
-
-
-
-
echinodarmata
- water vasculat system
- sieve plate
- tube feet
- calcareous skeleton
-
sieve plate
- echinodermata
- opening for water balance in water vascular syste,
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