Dichotomous Key

• Cut out the creature and organize them according to their physical attributes.

• Be sure to use descriptive binomial nomenclature to create names for each organism.

See attached list of words and meanings.

• Create a dichotomous key so each creature can be accurately identified.

See attached key example.

TailLong Neck?

More than 6

legs

Claws

More than 2

legs

Lives in water?

Legs

Horns?

Y

Y

Y

Y

Y

Y

Y Y

N N

N

N

N

N

N

N

OstrichCrab

Spider

CicadaBrontosaurus

Anole

Tadpole

FishBull

Animal Kingdom Dichotomous Key

START

Prefix / Word Meaning Prefix / Word Meaning Prefix / Word Meaningacutus, acuta Sharpened, pointed dolicho- Elongated, long octo-, octa- Eightagrestis From the field, wild dorsum Back -odon, -odus Toothalbus White dynam- Power, Force opsis Face, appearanceampulla Bottle, flask echinatus Prickly, spiny orientalis Easternanthropos Man, human being ensi-, ensis Sword, lance ortho- Straightaquaticus Found in water erion, erio- Wool, woolly pachy- Thick, stoutarctos Bear erosus jagged, serrated pedi- Footarthron Joint erythro- Red pennatus Wingedaustralis Southern gastro-, gastr- Belly pholis, pholid- Scaleborealis Northern glabra Smooth; Hairless platy- Flat or broadbrachion Arm gyrinos Tadpole poly- Manybrachys, brachy- Short hali-, halio- Of the sea, salt pter- Wingedbradys, brady- Slow hexa- Six punctatus Spottedbranchia Gills hippo- Horse reptans Creeping, crawlingcaecus Blind hydro- Water rhis, rhino- Nosecaeruleus Blue hyper- Over, above rhynchos Beak or snoutcanis Dog hypo-, hyp- Under, beneath rhyti-, rhytis Wrinkled, foldedcanus Gray (haired) lateralis Side saura, -saur Lizardcauda Tail latus Flank septem- sevenceps Head leucοs White stoma Mouth, openingceros Horn lineatus Lined or striped striatus Stripedchilensis From Chile lutea Yellow tardus, tardi- Slow, latechlorοs Green macro Long, Large tenuis Thin, slender, finecneme Shin, leg maculatus Spotted tetra- Fourcostatus Ribbed megas Large, great trich-, thrix Haircrass- Thick melano- Black unus Onecrocos Yellow micro small ventralis bellydactylοs Finger or toe mono- Single verrucosus Rough skinnedderma Skin nanοs Dwarf viridis Greendi- Two obscurus Dark virosus Poisonousdino-, deino- Terrible occidentalis Western volans Flyingdodeca Twelve ocean Ocean vulgaris Common