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(Cephalochordata), notochord is present in
Cephalochordata (Branchiostoma) is:
Tunicates or sea squirts are members of the Chordata subphylum...
Larval tunicates are planktonic and tadpole-like. Even though the adult tunicates are initially difficult to recognize as members of the phylum Chordata, the larvae possess all four unique chordate characteristics
Which of the following is not one of the five characteristics seen in all chordates at some time in their life history?
Mouth developed from blastopore
All of the following are true of lancelets except one. Select the exception
Their notochord is restricted to the tail
Development in the tunicates involves a ____________ larval stage
In chordates, the __________ is a dorsal rod,with a sheath of connective tissue,functioning in support.
All of the following are unique to members of the phylum Chordata except one. Select the exception.
Ventral nerve cord
Which one is absent in Branchiostoma(lancelet)?
In protochordates, the epidermis is
The atrium of cephalochordates is a diverticulum off the gut that extends anteriorly. It ends blindly and secretes digestive enzymes
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