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No
Chordate
Chipmunks and ground squirrels have cheek pouches, grey and fox squirrels do not. Squirrels who live in trees don't have cheek pouches.
no
*
Yes they have Pharyngeal Pouches!!!=)
It simply highly suggests that all organisms going through this developmental phase have common ancestry, thus are related on the tree of life.
No
no they dont no tigers do that
gills
Fish
gill slits
it means slits it means slits
pharyngeal pouches
Chordate
a hollow nerve cord, a notochord, pharyngeal pouches, and a postanal tail
All Chordates have:1) a notochord2) pharyngeal slits3) a postanal tail4) a hollow dorsal nerve chordRead more: What_are_the_four_characteristics_of_a_chordate