Answer :
B. Lancelet
A lancelet is one of the few exceptions in the phylum Chordata that isn't a vertebrate.
A lancelet is one of the few exceptions in the phylum Chordata that isn't a vertebrate.
The study of animals is called zoology.
The correct answer to the question is option B which is lancelet.
What is phylum?
A group of classes is called phylum which helps to classify the species having the same characteristics.
According to the question, lancelets belong to the chordate while others were the example of Echinodermata.
Hence, the correct answer to the question is option B.
For more information about the phylum, refer to the link:-
https://brainly.com/question/14688752
