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Well, no they don't... There's a group of chordates called Agnatha which basically contains all the jawless chordates. And there are obviously limbless chordates present, the fishes and the snakes being the most well-known of the examples...
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∙ 12y ago
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What is the animal which are chordates and craniates but not vertabrate?
Myxini (hagfishes) are chordates and craniates. they have a cartillagenous skull but no vertebra or jaws.
A few characteristics of the turtle are listed below Segmented body Jaws and limbs No hair No placenta used during reproduction Where does the turtle belong in the cladogram shown below?
E, limbs (apex)
Do chordates have a coelom?
Yes. All chordates are coelomates.
Is ant chordate or non-chordate?
Ants and all other insects are non-chordates. Insects belong to the subphylum arthropoda. Animals that are vertebrates are considered to be chordates.
What was the major development in vertebrate evolution?
Evolution of paired limbs was one of major developments . Similarly development of jaws , Amnion etc are also major developments .
What does this cladogram tell you about evolutionary relationship of the traits of jaws and limbs?
Jaws came before limbs.
What is the animal which are chordates and craniates but not vertabrate?
Myxini (hagfishes) are chordates and craniates. they have a cartillagenous skull but no vertebra or jaws.
All vertebrates are chordates but not all chordates are vertebrates?
all vertebrates are chordates because vertebrates are the sub- group of phylum chordates and also it follow one of the important feature of the chordates i.e. presence of notochord whereas all chordates are not vertebrates because some chordates are cephalochordates, urochordates.
A few characteristics of the turtle are listed below Segmented body Jaws and limbs No hair No placenta used during reproduction Where does the turtle belong in the cladogram shown below?
E, limbs (apex)
Do chordates have a coelom?
Yes. All chordates are coelomates.
What is the popular name for chordates?
There isn't a "popular name" for them. The most familiar chordates are the vertebrates, but not all chordates are vertebrates (tunicates, for example, are chordates).
What is a characteristic shared by all chordates the phylum in which humans are classified?
One characteristic shared by all chordates is the presence of a notochord, a flexible rod that provides structural support. Humans, being classified under the phylum Chordata, possess a notochord during their embryonic development that eventually develops into the spinal column.
What runs down the back of all chordates?
nerve cord runs down the back of ALL chordates
Are all fish chordates?
All fish are chordates. Chordates are vertebrates that have a hollow dorsal nerve called a notochord. They also have a central nervous system and gill clefts.
What do all Chordates have?
a backbone
What distinguishes a chordates?
At some point in all chordates' lives, they have a notochord, a nerve chord, gill slits and a tail. Some chordates are more complex though.
What is three things all chordates have in common besides a back bone what do all chordates have in common beside a backbone?
All Chordates have(in part of their life or another) A Notochord A hollow dorsal nerve cord A post-anal tail
