Problem: Microbiological culture is a principal tool used to diagnose infectious disease. In a microbial culture, a growth medium is provided for a specific agent. A sample taken from potentially diseased tissue or fluid is then tested for the presence of an infectious agent able to grow within that medium. Most pathogenic bacteria are easily grown on nutrient agar, a form of solid medium that supplies carbohydrates and proteins necessary for growth of a bacterium, along with copious amounts of water. A single bacterium will grow into a visible mound on the surface of the plate called a colony, which may be separated from other colonies or melded together into a "lawn". The size, color, shape and form of a colony is characteristic of the bacterial species, its specific genetic makeup (its strain), and the environment that supports its growth. Other ingredients are often added to the plate to aid in identification. Plates may contain substances that permit the growth of some bacteria and not others, or that change color in response to certain bacteria and not others. Bacteriological plates such as these are commonly used in the clinical identification of infectious bacterium. Microbial culture may also be used in the identification of viruses: the medium in this case being cells grown in culture that the virus can infect, and then alter or kill. In the case of viral identification, a region of dead cells results from viral growth, and is called a "plaque". Eukaryotic parasites may also be grown in culture as a means of identifying a particular agent.
What is it called when an invisible mound forms on the surface of a plate?
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Answer: unanswerable

Problem: However, Eritrea still faces many challenges. Despite number of physicians increasing from only 0.2 in 1993 to 0.5 in 2004 per 1000 population, this is still very low. Malaria and tuberculosis are common in Eritrea. HIV prevalence among the 1549 group exceeds 2%. The fertility rate is at about 5 births per woman. Maternal mortality dropped by more than half from 1995 to 2002, although the figure is still high. Similarly, between 1995 and 2002, the number of births attended by skilled health personnel has doubled but still is only 28.3%. A major cause of death in neonates is by severe infection. Per capita expenditure on health is low in Eritrea.
How many physicians are there per 1000 people as of 2016?
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Answer: unanswerable

Problem: This time they succeeded, and on 31 December 1600, the Queen granted a Royal Charter to "George, Earl of Cumberland, and 215 Knights, Aldermen, and Burgesses" under the name, Governor and Company of Merchants of London trading with the East Indies. For a period of fifteen years the charter awarded the newly formed company a monopoly on trade with all countries east of the Cape of Good Hope and west of the Straits of Magellan. Sir James Lancaster commanded the first East India Company voyage in 1601 and returned in 1603. and in March 1604 Sir Henry Middleton commanded the second voyage. General William Keeling, a captain during the second voyage, led the third voyage from 1607 to 1610.
What did this charter take away from them?
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Answer:
unanswerable