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What feature of the fossil Pikaia led scientists to classify it as a chordate? A. Tentacles B. A definite head region C. A notochord D. Segmentation
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What feature of the fossil Pikaia led scientists to classify it as a chordate?

A. Tentacles
B. A definite head region
C. A notochord
D. Segmentation

User Dmitry Velychko
by
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1 Answer

2 votes
Chordates are called chordates because they have a spinal chord, so the answer is C.
User Enigmativity
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