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Home Q & A Board Biology-Related Homework Help General Biology
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Guido Guido
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7 years ago
The earliest vertebrates lacked
A) a notochord.
B) gills.
C) jaws.
D) brains.
E) skeletons.
Textbook 
Biology: Life on Earth

Biology: Life on Earth


Edition: 10th
Authors:
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skeledentskeledent
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7 years ago
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Guido Author
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7 years ago
Thanks
ealvino1610
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Yesterday
Smart ... Thanks!
taydav
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2 hours ago
Brilliant ツ
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