Animal Kingdom

Front 1

Porifera

Back 1

SPONGES
-Assymetrical
-Organized as an assemblage of different kinds of specilaized cells, e.g., collar cells
-No tissues
-Skeleton lacking or made of spicules

Front 2

Cnidaria

Back 2

JELLYFISH, CORALS, ANEMONES, HYDRA
-2 tissue layers with nerve and muscle tissues
-Nematocysts - conatained in cnidocytes or cnidoblasts used for offense and defense
-2 main life forms: medusa or polyp

Front 3

Platyhelminthes

Back 3

FLATWORMS
-Bilaterally symmetrical with a head and a tail
-Centralized nervous system
-3 tissue layers
-No coelom, no circulatory system, and no hard skeleton

Front 4

Annelida

Back 4

POLYCHAETES, EARTHWORMS, LEECHES (CAMBRIAN EXPLOSION)
-Elongate & bilateral with segmented true body cavity (coelem)
-Complete circulatory system with capillaries, arteries, and veins
-Body wall made of circular and lengthwise muscles
-Continuous gut running from mouth to anus with own musculature
-Bristle-like structure, (setae) except leeches

Front 5

Arthropoda

Back 5

CRUSTACEANS, SPIDERS, MILLIPEDES, CENTIPEDES, INSECTS
-Hard exoskeleton made of chitin and protein
-Possess numerous jointed appendages and a segmented body
-Must molt to grow

Front 6

Mollusca

Back 6

CLAMS, SNAILS, SLUGS, NAUTILUS, OCTOPUS
-Rasping organ called a radula except bivalves and Aplacophora
-Muscular foot for locomotion and other tasks
-A mantle that covers body and can secrete the shell
-A mantle cavity that houses the gills or lungs
-A calcium shell in most molluscs, but some have reduced shell or none at all

Front 7

Echinodemata

Back 7

SEA STAR, SEA LILIES, SEA URCHINS, SEA CUCUMBERS, BRITTLE STARS
-Internal skeleton made of little calcium plates
-5-part symmetry
-Specail fluid-filled system (water vascular system) that operate the tube feet

Front 8

Chordata

Back 8

TUNICATES, LANCELETS, VERTEBRATES(AMPHIBIANS, REPTILES, MAMMALS)
-Notochord
-Dorsal Nerve Cord
-Gill Clefts
-Segmented muscles (except tunicates)
-Post-anal tail