The First correct answer is: "In both territories, settlers from differents U.S. regions engaged in widespread conflicts over the issue of slaver". The U. S. territory expansion fueled the debate of slavery because the rapid expansion took place to a mistreatment of native american and hispanic occupants.
The Second answer is, following the Manifiest destiny, while Texas was addmited to the Union as a state, the firmed idea was to expand to the Pacific Ocean and to take among all territory, urging national unity on behalf of “the fulfillment of our manifest destiny to overspread the continent allotted by Providence for the free development of our yearly multiplying millions.”
These are the nervous system and the endocrine (hormone) system. These systems regulate body processes through chemical and electrical signals that pass between cells.
Through Adam's sin, man became susceptible of disease and death as a punishment for his sin. He passed this condition to his children, which is the entire humankind, and now we all pay for our sins through death. We become sinners even before we were born, and of course before we could choose to sin or not, and therefore we pay for them with our immortality.