Chordata

Chordata species

invertebrates (lancelets, tunicates), lampreys, hagfish, amphibians, reptiles, mammals

Chordata embryonic tissue layers

triploblastic

Chordata symmetry

bilateral

Chordata cephalization

yes

Chordata early development

deuterostome

Chordata loph ecdy

neither

Chordata body cavity

coelom

Chordata support

endoskeleton (cartilage, bone)

Chordata segmentation

yes (ie: abs, ribs)

Chordata free parasite

free living and parasitic

Chordata movement

paired appendages, muscle contractions

Chordata habitat

marine, freshwater, terrestrial

Chordata get nutrients by

ingest food then digest in gut then excrete

Chordata digestive system

complete

Chordata circulatory system

closed

Chordata respiratory system

lungs, gills

Chordata excretory system

kidneys, ureter, some through skin/gills

Chordata ecological role

food sources, regulate populations

Chordata human significance

food source, pets, medicine, research

Chordata #species

80,000