The problem: Answer a question about this article:
Bacteria, as asexual organisms, inherit identical copies of their parent's genes (i.e., they are clonal). However, all bacteria can evolve by selection on changes to their genetic material DNA caused by genetic recombination or mutations. Mutations come from errors made during the replication of DNA or from exposure to mutagens. Mutation rates vary widely among different species of bacteria and even among different clones of a single species of bacteria. Genetic changes in bacterial genomes come from either random mutation during replication or "stress-directed mutation", where genes involved in a particular growth-limiting process have an increased mutation rate.
What are two ways changes to DNA of bacteria can occur?
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The answer: random mutation during replication or "stress-directed mutation"


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Carnival means weeks of events that bring colourfully decorated floats, contagiously throbbing music, luxuriously costumed groups of celebrants of all ages, King and Queen elections, electrifying jump-ups and torchlight parades, the Jouvert morning: the Children's Parades and finally the Grand Parade. Aruba's biggest celebration is a month-long affair consisting of festive "jump-ups" (street parades), spectacular parades and creative contests. Music and flamboyant costumes play a central role, from the Queen elections to the Grand Parade. Street parades continue in various districts throughout the month, with brass band, steel drum and roadmarch tunes. On the evening before Lent, Carnival ends with the symbolic burning of King Momo.
What continues in various districts throughout the month of the Carnival?
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The answer: Street parades


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Masonic lodges existed in Iraq as early as 1917, when the first lodge under the United Grand Lodge of England (UGLE) was opened. Nine lodges under UGLE existed by the 1950s, and a Scottish lodge was formed in 1923. However, the position changed following the revolution, and all lodges were forced to close in 1965. This position was later reinforced under Saddam Hussein; the death penalty was "prescribed" for those who "promote or acclaim Zionist principles, including freemasonry, or who associate [themselves] with Zionist organisations."
Who introduced the death penalty to Freemasons living in Iraq?
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The answer: Saddam Hussein


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In mathematics, a group is an algebraic structure consisting of a set of elements equipped with an operation that combines any two elements to form a third element. The operation satisfies four conditions called the group axioms, namely closure, associativity, identity and invertibility. One of the most familiar examples of a group is the set of integers together with the addition operation, but the abstract formalization of the group axioms, detached as it is from the concrete nature of any particular group and its operation, applies much more widely. It allows entities with highly diverse mathematical origins in abstract algebra and beyond to be handled in a flexible way while retaining their essential structural aspects. The ubiquity of groups in numerous areas within and outside mathematics makes them a central organizing principle of contemporary mathematics.
What is the name used to describe the four conditions of closure, associativity, identity and invertibility?
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The answer:
group axioms