Chordata
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20 Terms
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 (mouth, gills can be filter) then digest in gut then excrete
Chordata digestive system
complete
Chordata circulatory system
heart (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
Note 
Flashcards (44)