Vocabulary
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Is that a challenge?
100
Define chordata
Phylum of animals that display notochord, dorsal nerve cord, postanal tail, and gill slits at some point in their lifespan
100
pelvic girdle
Pelvis-hips
100
Ectothermic
Organisms whose body temp. varies with outside environment- “cold blooded”
100
pectoral girdle
shoulders
100
gnat
jaw
200
Define notochord
Flexible rodlike structure, used for support
200
agnatha
“without jaw”- Class of jawless fish- ex. Lamprey eel
200
What does "ectothermic" mean?
outside heat
200
fusi
torpedo shaped
200
Define osteichthyes
bony fish
300
Axial Skeleton
skull, spine
300
fusi
torpedo shaped
300
Vertebral column
Series of vertebrae from head to tail- protects spinal cord
300
os/osteo
bone
300
vertebrata
Subphylum of Chordata that contains animals whose notochord becomes their vertebral column
400
appendicular skeleton
pelvic and pectoral girdle
400
cloaca
Common chamber used for reprod., urination, and digestion
400
Homocercal
Symmetrical fin lobes
400
chondr-
cartilage
400
urochordata
Subphylum of Chordata- tunicates, sea squirts Tunic made of cellulose
500
oviparous
producing eggs that hatch outside of the body
500
operculum
covering for gills
500
heterocercal, and which animal has a heterocercal tail?
upper lobe is larger, shark
500
icthyes
fish
500
What are the three subphylum of Chordates
urochordates, cephalochordates, and vertebrata
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