Yes they have Pharyngeal Pouches!!!=)
pharyngeal pouches
for plato users the answer is B. notochrd, nerve cord, pharyngeal gill slits, postanal tail
To answer the question in the simplest way, the manatee has a backbone.However, there is more to it than that, especially given that there are two invertebrate chordate groups - Urochordata (tunicates) and Cephalachordata (lancelets) - whose backbone is not in the form of actual vertebrae.As Chordates (or members of the phylum Chordata), manatees share the following characteristics:dorsal nerve cord which is a bundle of nerve fibres which runs down the back. It connects the brain with the lateral muscles and other organs.notochord which is a cartilaginous rod running underneath, and supporting, the nerve cord - in the case of the manatee, a spine.post-anal tail - an extension of the body past the anal opening. (This feature is not always present in some adult Chordates such as frogs and humans, but it is present in the manatee.)Pharyngeal pouches - Chordates, at some stage of their life, have pharyngeal grooves and pouches that develop into other essential parts of their anatomy.
no
The four specific characteristics of chordates are that they have a notochord, hollow nerve cord near the notochord, pharyngeal pouches, and an endostyle. Many of these characteristics disappear in invertebrate chordates when they reach adulthood. Most vertebrate chordates retain all four features, such as humans.
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
It simply highly suggests that all organisms going through this developmental phase have common ancestry, thus are related on the tree of life.
for plato users the answer is B. notochrd, nerve cord, pharyngeal gill slits, postanal tail