Many northerners began to call for an end to reconstruction because

Many Northerners began to call for an end to reconstruction because of the Panic of 1873, which subsequent economic depression helped bring Reconstruction to a formal end.

This financial crisis decreased the northern interest in spending more federal funds on the Reconstruction of the South, and further weakened the Republican Party, allowing Democrats to regain the House of Representatives in 1874.

In addition to this, many former abolitionists believed that their purposes had been reached with the passage of the 13th, 14th and 15th amendments and the establishment of the Freedman´s Bureau and Military reconstruction.

food chain i would say only because there is competition on getting food and survival

the correct answer is: (1) affected by gerrymandering; (2) not affected by gerrymandering.

gerrymandering is known as a practice that intends to establish a some kind of political advantage for a particular party or group. to do this district boundaries are manipulated. the new resulting district is named a gerrymandering.

in other words, what gerrymandering does is to draw the boundaries of electoral districts trying to benefit the party who is doing it. sometimes, the party controlling the legislature will redraw it so they can maximize the number of districts they are likely to control.