Problem: One crucial innovation in reconceptualizing genotypic and phenotypic variation was the anthropologist C. Loring Brace's observation that such variations, insofar as it is affected by natural selection, slow migration, or genetic drift, are distributed along geographic gradations or clines. In part this is due to isolation by distance. This point called attention to a problem common to phenotype-based descriptions of races (for example, those based on hair texture and skin color): they ignore a host of other similarities and differences (for example, blood type) that do not correlate highly with the markers for race. Thus, anthropologist Frank Livingstone's conclusion, that since clines cross racial boundaries, "there are no races, only clines".
Why are variations distributed along clines?
The answer is the following: isolation by distance

Problem: As children coming of age, Scout and Jem face hard realities and learn from them. Lee seems to examine Jem's sense of loss about how his neighbors have disappointed him more than Scout's. Jem says to their neighbor Miss Maudie the day after the trial, "It's like bein' a caterpillar wrapped in a cocoon ... I always thought Maycomb folks were the best folks in the world, least that's what they seemed like". This leads him to struggle with understanding the separations of race and class. Just as the novel is an illustration of the changes Jem faces, it is also an exploration of the realities Scout must face as an atypical girl on the verge of womanhood. As one scholar writes, "To Kill a Mockingbird can be read as a feminist Bildungsroman, for Scout emerges from her childhood experiences with a clear sense of her place in her community and an awareness of her potential power as the woman she will one day be."
What was the name of the neighbor that Jem speaks too after Tom Robinson's trial?
The answer is the following: Miss Maudie

Problem: In consequence to the Reform War, the federal government was bankrupt and could not pay its foreign debts to Spain, England, and France. On July 17, 1861, President Juárez decreed a moratorium on payment to foreign debtors for a period of two years. Spain, England, and France did not accept the moratorium by Mexico; they united at the Convention of the Triple Alliance on October 31, 1861 in which they agreed to take possession of several custom stations within Mexico as payment. A delegation of the Triple Alliance arrived in Veracruz in December 1861. President Juárez immediately sent his Foreign Affairs Minister, Manuel Doblado, who is able to reduce the debts through the Pacto de Soledad (Soledad Pact). General Juan Prim of Spain persuaded the English delegation to accept the terms of the Pacto de Soledad, but the French delegation refused.
Which country refused to accept?
The answer is the following: France

Problem: Baronial unrest in England prevented the departure of the planned 1205 expedition, and only a smaller force under William Longespée deployed to Poitou. In 1206 John departed for Poitou himself, but was forced to divert south to counter a threat to Gascony from Alfonso VIII of Castile. After a successful campaign against Alfonso, John headed north again, taking the city of Angers. Philip moved south to meet John; the year's campaigning ended in stalemate and a two-year truce was made between the two rulers.
Why did John divert south?
The answer is the following:
to counter a threat to Gascony from Alfonso VIII of Castile