REPRODUCTION
EMBRYONIC DEVELOPMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If the opening in the gastrula turns into the organisms mouth then it must be a
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deuterostome
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protostome
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human
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dog
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Explanation:
Detailed explanation-1: -The mouth of the Protostomia (proto, “first”; stoma, “mouth”) develops from the first opening into the embryonic gut (blastopore). The coelom (body cavity) forms from a split in the embryonic mesoderm (middle tissue).
Detailed explanation-2: -blastopore, the opening by which the cavity of the gastrula, an embryonic stage in animal development, communicates with the exterior.
Detailed explanation-3: -Protostomes versus Deuterostomes. The majority of coelomate invertebrates develop as protostomes ("first mouth") in which the oral end of the animal develops from the first developmental opening, the blastopore. In the deuterostomes ("second mouth": cf.
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