Which of the following findings led to the conclusion that sea squirts are more closely related to vertebrates than scientists had previously thought?
A) Data from CT scans
B) The finding that larvae have notochords
C) The discovery of behavioral similarities in sea squirts and vertebrates
D) Newly discovered fossils in China
E) None of the above

Question

Quizplus · Accepted Answer

The finding that larvae have notochords led to the conclusion that sea squirts are more closely related to vertebrates than previously thought. The notochord is a defining characteristic of chordates, the phylum that encompasses vertebrates.

Which of the Following Findings Led to the Conclusion That