In a cell as per the Operon Concept, the regulator gene governs the chemical reactions by

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#Question id: 8952

#9. Diversity of Life Forms

The blastopore is a structure that first becomes evident during

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#Question id: 8953

#9. Diversity of Life Forms

The blastopore denotes the presence of an endoderm-lined cavity in the developing embryo, a cavity that is known as the

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#Question id: 8954

#9. Diversity of Life Forms

Which of the following is descriptive of protostomes?

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#Question id: 8955

#9. Diversity of Life Forms

Which of the following characteristics generally applies to protostome development?

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#Question id: 8956

#9. Diversity of Life Forms

Protostome characteristics generally include which of the following?

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#Question id: 8959

#9. Diversity of Life Forms

The most ancient branch point in animal phylogeny is that between having