On 11 July, Nasser replaced Amer with Mohamed Fawzi as general commander, over the protestations of Amer's loyalists in the military, 600 of whom marched on army headquarters and demanded Amer's reinstatement. After Nasser sacked thirty of the loyalists in response, Amer and his allies devised a plan to topple him on 27 August. Nasser was tipped off about their activities and, after several invitations, he convinced Amer to meet him at his home on 24 August. Nasser confronted Amer about the coup plot, which he denied before being arrested by Mohieddin. Amer committed suicide on 14 September. Despite his souring relationship with Amer, Nasser spoke of losing "the person closest to [him]". Thereafter, Nasser began a process of depoliticizing the armed forces, arresting dozens of leading military and intelligence figures loyal to Amer.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What loyalists did Nasser target?
Ah, so.. figures loyal to Amer

Drug discovery is the process by which potential drugs are discovered or designed. In the past most drugs have been discovered either by isolating the active ingredient from traditional remedies or by serendipitous discovery. Modern biotechnology often focuses on understanding the metabolic pathways related to a disease state or pathogen, and manipulating these pathways using molecular biology or biochemistry. A great deal of early-stage drug discovery has traditionally been carried out by universities and research institutions.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What focuses on metabolic pathways?
Ah, so.. biotechnology

Other sections of society included the nobility, clergy, and townsmen. Nobles, both the titled nobility and simple knights, exploited the manors and the peasants, although they did not own lands outright but were granted rights to the income from a manor or other lands by an overlord through the system of feudalism. During the 11th and 12th centuries, these lands, or fiefs, came to be considered hereditary, and in most areas they were no longer divisible between all the heirs as had been the case in the early medieval period. Instead, most fiefs and lands went to the eldest son.[R] The dominance of the nobility was built upon its control of the land, its military service as heavy cavalry, control of castles, and various immunities from taxes or other impositions.[S] Castles, initially in wood but later in stone, began to be constructed in the 9th and 10th centuries in response to the disorder of the time, and provided protection from invaders as well as allowing lords defence from rivals. Control of castles allowed the nobles to defy kings or other overlords. Nobles were stratified; kings and the highest-ranking nobility controlled large numbers of commoners and large tracts of land, as well as other nobles. Beneath them, lesser nobles had authority over smaller areas of land and fewer people. Knights were the lowest level of nobility; they controlled but did not own land, and had to serve other nobles.[T]
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): In what centuries did fiefs become hereditary?
Ah, so..
11th and 12th