Problem: Symbiosis:

Amensalism is an interaction where an organism inflicts harm to another organism without any costs or benefits received by the other. A clear case of amensalism is where sheep or cattle trample grass. Whilst the presence of the grass causes negligible detrimental effects to the animal's hoof, the grass suffers from being crushed. Amensalism is often used to describe strongly asymmetrical competitive interactions, such as has been observed between the Spanish ibex and weevils of the genus Timarcha which feed upon the same type of shrub. Whilst the presence of the weevil has almost no influence on food availability, the presence of ibex has an enormous detrimental effect on weevil numbers, as they consume significant quantities of plant matter and incidentally ingest the weevils upon it.

What is altered if the presence of ibex has little detrimental effect on the number of weevil?
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A: unanswerable

Problem: Chihuahua (state):

A handful of families owned large estates (known as haciendas) and controlled the greater part of the land across the state while the vast majority of Chihuahuans were landless. The state economy was largely defined by ranching and mining. At the expense of the working class, the Diaz administration promoted economic growth by encouraging investment from foreign companies from the United Kingdom, France, Imperial Germany and the United States. The proletariat was often exploited, and found no legal protection or political recourse to redress injustices.

Diaz promoted economic growth by encouraging investment from foreign companies at the expense of what group?
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A: working class

Problem: Napoleon:

By 1795, Bonaparte had become engaged to Desiree Clary, daughter of Francois Clary. Desiree's sister Julie Clary had married Bonaparte's elder brother Joseph. In April 1795, he was assigned to the Army of the West, which was engaged in the War in the Vendeea civil war and royalist counter-revolution in Vendee, a region in west central France on the Atlantic Ocean. As an infantry command, it was a demotion from artillery generalfor which the army already had a full quotaand he pleaded poor health to avoid the posting.

In April 1795, what military organization was Napoleon assigned to?
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A: the Army of the West

Problem: Brain:

In humans and many other mammals, new neurons are created mainly before birth, and the infant brain contains substantially more neurons than the adult brain. There are, however, a few areas where new neurons continue to be generated throughout life. The two areas for which adult neurogenesis is well established are the olfactory bulb, which is involved in the sense of smell, and the dentate gyrus of the hippocampus, where there is evidence that the new neurons play a role in storing newly acquired memories. With these exceptions, however, the set of neurons that is present in early childhood is the set that is present for life. Glial cells are different: as with most types of cells in the body, they are generated throughout the lifespan.

The infant brain contains more of what type of cells in the brain than the adult brain?
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A:
neurons