SPONGES

1. Asymmetry (no symmetry)
2. primitive, immobile, "dead end"
3. no true tissue layer
4. Asymmetry
5. spicule: skeleton
6. sexual& asexual reproduction
7. Accelomate

Jelly Fish, Anemones, Corals, Hydras

1. radial symmetry
2. diploblastic
3. 2 life stages:
4. Sessile (polyp, immobile, Asexual),
5. Mobile (medusa, free swimming, Sexual)
6. Incomplete gut
7. Accelmate 

Comb Jellies

1. Diploblastic
2. Radial Symmetry
3. Complete Gut
4. 2 Cell Layers separated by Mesoglea
5. Sexual Reproduction
6. Accelomate 

Flatworms, Tapeworms

1. Bilateral Symmetry
2. 3 Cell Layers
3. Incomplete Gut (but has a stomach)
4. has a brain! :O
5. Accelomate
6. Diploblastic

Segmented Worms (earth wormies)

1. Bilateral Symmetry
2. Celomates
3. Complete Gut
4. Diploblastic
5. Sexual Reproduction

Snails

1. Bilateral Symmetry
2. Coelom (fluid filled body cavity in mesoderm)
3. Mantle: SHELL
4. Foot: movement
5. Visceral Mass: heart, digestive, excretory, & reproductive organs
6. Gills - filter feeder
7. Complete Gut
8. Sexual Reproduction

Round Worms

1. Bilateral Symmetry
2. Psuedocelomate
3. external skeleton
4. Cuticle aids survival
5. Complete Gut
6. Sexual Reproduction 

Insects, Crabs, Spiders

1. Bilateral Symmetry
2. Complete gut
3. Exoskeleton with joined limbs
4. Celomate
5. Complete Nervous/Respiratory System
6. Compound Eye
7. Invertebrate
8. Sexual Reproduction

Starfish, Sea Urchins, Sea Cucumbers

1. Bilateral/Radial Symmetry
2. Celomate
3. Water Vascular System (gas ex./feeding/movement)
4. True Feet (tube feet for feeding)
5. Sexual Reproduction

ALL POSESS

1. notochord
2. post anal tail
3. dorsal tubular nerve chord
4. gills or pharyngeal sites (filter feeding)

Cephalochordates & Urochordates

(Invertebrate Chordate subphyla)

Simplified fishies & Sea Squirts, Tunicates

1. Notochord
2. Tadpole Larval Stage
3. Always Marine 
4. Asymmetry
5. Incomplete gut
6. Duterostome

Vertibrates

(Chordata Subphyla)

Mammals, Birds

1. vertebral column replaces notochord
2. complete circulatory/respiratory/excretory system
3. Bilateral Symmetry
4. Developed from oceans and Estuarine Environments (fresh water meets salt water)
5. development of cuticle/impermeable skin layer
6. Respiration evolved from gills to lungs
7. moveable appendages
8. sexual reproduction
9. Duterostome