The phylum Hemichordata is the one that could form an evolutionary connection between the chordates and non-chordates.
Explanation:
To the phylum Hemichordata belongs a genus that scientists believe could explain how the chordates could evolve from the non-chordates. This genus is Balanoglossus, of the class Enteropneusta.
Balanoglossus is similar to a worm, whose habitat is the seabed, and like other hemicordates it has a stomach, a structure that forms part of its digestive system and fulfills the functions of a spine.
Balanoglossus is the connecting link between Chordates and non Chordates because it helps in depicting the main characteristics of phylum. It is a dwelling type worm. It is an evolutionary link.
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Balanoglossus carnosus.
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Balanoglossus numeensis Maser.
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Balanoglossus numeensis.
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Backbone in animals body structure are known as chordates.
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In different language Non-chordates are the animals without backbone.
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Humans are not chordates because humans do not have a tail.
