The Most Likely Ancestors of the Chordates Are Considered to Be

question 40

Multiple Choice

The most likely ancestors of the chordates are considered to be echinoderms because

• A)tunicates are echinoderms.
• B)there is a direct lineage from sea stars to tunicates.
• C)embryos of echinoderms and chordate embryos are deuterostomes.
• D)adult echinoderms display similar characteristics as adult chordates.
• E)the nervous system of echinoderms is similar to that of chordates.

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