One of the major reasons why the urban revolution was essential in the development of civilizations was because "<span><span>D. The urban revolution required people to maintain and assure the survival of large populations, which led to a demand for more complex governmental systems," since these government systems were essential in terms of expansion and development. </span></span>
<span>The mouse did not survive when injected with a mixture of live, avirulent (smooth) Streptococcus pneumoniae and heat‑killed, virulent Streptococcus pneumoniae.</span>
It is caused by electrons
<span>The two U.S. admirals whose work contributed greatly to the
defeat of the German U-boat offensive are Ernest J. King and David D. Porter. Admiral
Ernest J. King served as Chief of Naval Operations and Commander in Chief, U.S.
Fleet to improve the effectiveness of American naval operations.</span>
B. Because an invasion of japan's mainland would have meant the loss of thousands of American lives, many analyst's discussed it and said between 500,000 - 1 million lives could have been lost during the invasion due to how dug in and defended Japan would have been. Including their miles and miles of underground tunnels
