Which of the Following Animals is Not in the Phylum

Question

Which of the following animals is not in the phylum Chordata?
A)sea squirts
B)salps
C)acorn worms
D)hagfish
E)lampreys

Accepted Answer

Acorn worms belong to the phylum Hemichordata, not Chordata. The other animals listed (sea squirts, salps, hagfish, and lampreys) are all part of the phylum Chordata.