Please enable JavaScript.
Coggle requires JavaScript to display documents.
Zoology (Phylum Cnidaria (Anthrozoa (anemones- only in polyp stage…
Zoology
Phylum Cnidaria
Anthrozoa
anemones- only in polyp stage includes corals
Hydrozoa
Colonial Obelia- dominant polyp stage
Cubozoa
box jellyfish
Schyphozoa
Jellyfish- dominant medusa stage
Jellyfish, Radially symmetrical, 2 way gut, 2 tissue layers, cnidocytes, mesoglea between ectoderm and enododerm
Phylum Mollusca
Polyplacophora
chitons, gills and 8 shell plates, cling to rocks with muscular foot, scrape algae with radula, marine
BIvalvia
two shells with a muscular hinge. clams, oysters, scallops. No head or radula. many use foot to bury in sand. suspension feed with siphon. one way gut. some sessile other motile
Shipworms are the exception. Termites of the sea
Gastropoda
snails, slugs. most glide on foot others use it to swim. most have shells. some are toxic, radula
Cephalopoda
squids. foot is modified into tentacles and arms, radula, closed circulatory system
coelomates- one way gut, visceral mass, foot, mantle secretes shell, open circulatory system, trochophore larva, bilateral symmetry
Phylum Porifera
Calcarea- possess spicules of calcium carbonate
Hexactinellida- glass sponges, skeleton made of 6 or 4 points
Demospongia- spicules, colorful, primarily leuconoid, basic sponge
Sponges- No tissues, asymmetric, Have three cells in jelly like mesohyl layers, central cavity, heterotrophic filter feeders, digestion takes place within choanocytes, mostly hermaphrodites,
Three levels of organization- asconoid, syconoid, leuconoid
Phylum Platelhyminthes
Trematoda
flukes, parasitic flatworms with complex life cycles, suckers to attached to host
Cestoda
Tapeworms- parasites, repeated segments,
Turbellaria
planaria, flatworms, flame cells
Flatworms, no coelem, 2 way gut, gastrovascular cavity, 3 tissue layers, first hunter with cehphalizaton, hermaphroditic,
Phylum Annelida
Polychaeta
marine, use parapodia for movement and setae for anchoring, breathe through epidermis
Clitellata
Oligochaeta
earthworms, setae, eat out of dirt, hermaphrodites.
Huridinea
Leeches, have anterior and posterior suckers,
Segmented, closed circulatory system, nervous system, coelem, hydrostatic skeleton, cephalized,
Phylum Nematoda
round worms, pin worms, motile, cuticle
3 Lophotrochozoa
Echdysozoa
Diploblastic
Triploblastic