The extant group likely to be the most closely related to the basal chordates are the echinoderms because
A) there is direct fossil evidence for a lineage from sea stars to tunicates.
B) tunicates are advanced echinoderms.
C) early embryonic development of echinoderms is similar to that of chordates.
D) although there are few similarities between echinoderms and chordates,there are even fewer between chordates and any other group.
E) new molecular evidence shows they are nearly identical at the rRNA level.
Correct Answer:
Verified
Q4: Chordates typically have
A)a notochord.
B)radial cleavage.
C)the anus derived
Q5: The central definition of a monophyletic group
Q6: Adult ascidian tunicates have
A)a notochord.
B)pharyngeal slits.
C)a dorsal
Q7: The difference(s)between the traditional and cladistic classification
Q8: Although several invertebrate groups have been proposed
Q10: Modification of the pharyngeal slits for first
Q11: All chordates have
A)a single,dorsal,tubular,nerve cord.
B)a ventral heart.
C)pharyngeal
Q12: One example of why a cladist is
Q13: Appendicularians
A)are sexually mature individuals that have retained
Q14: Organisms that retain the larval form of
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents