Question

phylogeny of protochordates

Answer 1

Answer:

Protochordata describes two invertebrate chordate subphyla, the Tunicata (Urochordata) and the Cephalochordata. ... However, molecular phylogenies show only weak support for the Tunicata as the sister-group to the rest of the chordates, suggesting that they are highly divergent from the Cephalochordata and Vertebrata.

Explanation: