Answer:
It is true that the protostome developmental sequence arose just once in evolutionary history.
Explanation:
During evolution the Bilateria had been into two major divisions. One was the protostomes and another was the deuterostomes. It is all categorized during the embryonic development.
It is differentiated by the formation of anus and mouth. The protostomes include the annelids, molluscs and arthropods. Studies reveal that Protostomes are derived from their prebilaterian ancestors.
The protostome developmental sequence has been aroused only once during evolution which lead to the evolution of more than thousands of new species. They then were subdivided into two major group, namely Lophotrochozoa and Ecdysozoa.
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i cant really explain sorry hope it helps though
G.I. Bill. President Roosevelt passed this act to help returning soldiers from WW2 get situated in real life. Such as tuition,loans, cheap mortgages and more. You’re welcome. The answer is G.I. Bill
Federalist Papers, Articles about the Constitution written by John Jay, James Madison, and ... Alexander Hamilton author of the Federalist Papers ... Hamilton, a firm believer in the Constitution, wrote in Federalist No.
