In protochordata skull is absent or present ?
Answers
Answered by
0
Protochordates are commonly called lower chordates.
They lack a head and a cranium, so they are also known as Acraniata.
Protochordates consists of three sub-phyla based on the property of notochord. They are Hemichordata, Urochordata and Cephalochordata.
Body is stout and unsegmented, and has a worm–like or vase–like
Three distinct regions namely proboscics, collar and trunk are present.
They are bilaterally symmetrical and triploblastic.
They have organ-system level of organization.
Answered by
0
Answer:
they lack in cranium and does not have skull
Similar questions