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.
The cause of Shay's Rebellion was the government was trying to take away the farmers land which led to all the farmers to rebel against the government. Many farmers were in debt at the time from taxes and lost their land. Daniel Shays rebelled to try to put an end to it.
It had numerous meanings, the most common being a symbol of good luck and auspiciousness.
They maintain and plow the local roads. Those in return, allow for members of society (including your family) to travel around. This also may increase certain taxes that your family has to pay. Hope This Helps!
