Of the following invertebrate groups, the group most closely related to the chordates is the _____.
A) annelids
B) mollusks
C) crustaceans
D) echinoderms
E) cnidarians

Question

​Of the following invertebrate groups, the group most closely related to the chordates is the _____.
A) ​annelids
B) ​mollusks
C) crustaceans​
D) ​echinoderms
E) cnidarians​

Quizplus · Accepted Answer

Echinoderms are the most closely related to chordates among the options listed. Both echinoderms and chordates belong to the Deuterostomia superphylum, sharing developmental characteristics such as the formation of the anus from the blastopore.

​Of the Following Invertebrate Groups, the Group Most Closely Related

Of the Following Invertebrate Groups, the Group Most Closely Related