QUES: This effectively means that populations of organisms must have reached a certain measurable level of difference to be recognised as subspecies. Dean Amadon proposed in 1949 that subspecies would be defined according to the seventy-five percent rule which means that 75% of a population must lie outside 99% of the range of other populations for a given defining morphological character or a set of characters. The seventy-five percent rule still has defenders but other scholars argue that it should be replaced with ninety or ninety-five percent rule.

What must organisms have a measurable level of to be seen as a subspecies?
What is the answer?
ANS: difference
QUES: Eisenhower told District of Columbia officials to make Washington a model for the rest of the country in integrating black and white public school children. He proposed to Congress the Civil Rights Act of 1957 and of 1960 and signed those acts into law. The 1957 act for the first time established a permanent civil rights office inside the Justice Department and a Civil Rights Commission to hear testimony about abuses of voting rights. Although both acts were much weaker than subsequent civil rights legislation, they constituted the first significant civil rights acts since 1875.

Who did Eisenhower tell DC officials to integrate?
What is the answer?
ANS: school children
QUES: Soon after the war began, General MacArthur had begun planning a landing at Incheon, but the Pentagon opposed him. When authorized, he activated a combined U.S. Army and Marine Corps, and ROK Army force. The X Corps, led by General Edward Almond, Commander, consisted of 40,000 men of the 1st Marine Division, the 7th Infantry Division and around 8,600 ROK Army soldiers. By 15 September, the amphibious assault force faced few KPA defenders at Incheon: military intelligence, psychological warfare, guerrilla reconnaissance, and protracted bombardment facilitated a relatively light battle. However, the bombardment destroyed most of the city of Incheon.

What Corps included 40,000 men from the 1st Marine Division?
What is the answer?
ANS:
The X Corps