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During embryonic development, if the anus develops before the mouth, the organism is a _____.
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During embryonic development, if the anus develops before the mouth, the organism is a _____.

User Raphvanns
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Answer: A deuterostome.

Explanation: In embryonic development, protostomes’s first opening develops as a mouth, while the deuterostome develops as an anus, prior to a mouth.

User Ychuris
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