Problem: Nutrition:

Proteins are structural materials in much of the animal body (e.g. muscles, skin, and hair). They also form the enzymes that control chemical reactions throughout the body. Each protein molecule is composed of amino acids, which are characterized by inclusion of nitrogen and sometimes sulphur (these components are responsible for the distinctive smell of burning protein, such as the keratin in hair). The body requires amino acids to produce new proteins (protein retention) and to replace damaged proteins (maintenance). As there is no protein or amino acid storage provision, amino acids must be present in the diet. Excess amino acids are discarded, typically in the urine. For all animals, some amino acids are essential (an animal cannot produce them internally) and some are non-essential (the animal can produce them from other nitrogen-containing compounds). About twenty amino acids are found in the human body, and about ten of these are essential and, therefore, must be included in the diet. A diet that contains adequate amounts of amino acids (especially those that are essential) is particularly important in some situations: during early development and maturation, pregnancy, lactation, or injury (a burn, for instance). A complete protein source contains all the essential amino acids; an incomplete protein source lacks one or more of the essential amino acids.

Approximately how many amino acid types does the human body generally have?
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A: twenty


Problem: As a non-directive and flexible analytical tool, the concept of boundaries helps both to map and to define the changeability and mutability that are characteristic of people's experiences of the self in society. While identity is a volatile, flexible and abstract 'thing', its manifestations and the ways in which it is exercised are often open to view. Identity is made evident through the use of markers such as language, dress, behaviour and choice of space, whose effect depends on their recognition by other social beings. Markers help to create the boundaries that define similarities or differences between the marker wearer and the marker perceivers, their effectiveness depends on a shared understanding of their meaning. In a social context, misunderstandings can arise due to a misinterpretation of the significance of specific markers. Equally, an individual can use markers of identity to exert influence on other people without necessarily fulfilling all the criteria that an external observer might typically associate with such an abstract identity.
What do markers help create?
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Answer: boundaries


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Computer security, also known as cybersecurity or IT security, is the protection of information systems from theft or damage to the hardware, the software, and to the information on them, as well as from disruption or misdirection of the services they provide. It includes controlling physical access to the hardware, as well as protecting against harm that may come via network access, data and code injection, and due to malpractice by operators, whether intentional, accidental, or due to them being tricked into deviating from secure procedures.
How can a computer be attacked?
A: unanswerable


Context and question: In 1966, CBS reorganized its corporate structure with Leiberson promoted to head the new "CBS-Columbia Group" which made the now renamed CBS Records company a separate unit of this new group run by Clive Davis.
The new "ABC-Columbia Group" had whom as its head?
Answer: unanswerable


Question: A Frankish identity emerged and so did their Frankish or Franconian language. The language itself is poorly attested. A notable exception is the Bergakker inscription, found near the Dutch city of Tiel, which may represent a primary record of 5th-century Frankish. Although some placenames recorded in Roman texts could arguably be considered as the oldest "Dutch" single words, like vadam (modern Dutch: wad, English: "mudflat"), the Bergakker inscription yields the oldest evidence of Dutch morphology, but there is no consensus on the interpretation of the rest of the text.
Is there an answer to this question: To which century do some researchers attribute the Bergakker inscription?

Answer: 5th


In the PAL region, which covers most of Africa, Asia, Europe, and Oceania, Twilight Princess is the best-selling entry in the Zelda series. During its first week, the game was sold with three of every four Wii purchases. The game had sold 5.82 million copies on the Wii as of March 31, 2011[update], and 1.32 million on the GameCube as of March 31, 2007[update].
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How many units of the Wii version of Twilight Princess had been purchased by the end of March 2007?
Ah, so..
unanswerable