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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
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Jan 20, 2018
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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
Biology
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Dmitry Velychko
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Chordates are called chordates because they have a spinal chord, so the answer is C.
Enigmativity
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Jan 24, 2018
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