Problem: Annelid:

However, leeches and their closest relatives have a body structure that is very uniform within the group but significantly different from that of other annelids, including other members of the Clitellata. In leeches there are no septa, the connective tissue layer of the body wall is so thick that it occupies much of the body, and the two coelomata are widely separated and run the length of the body. They function as the main blood vessels, although they are side-by-side rather than upper and lower. However, they are lined with mesothelium, like the coelomata and unlike the blood vessels of other annelids. Leeches generally use suckers at their front and rear ends to move like inchworms. The anus is on the upper surface of the pygidium.

How many brains do leeches have?
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A: unanswerable

Problem: Antibiotics:

Several molecular mechanisms of antibacterial resistance exist. Intrinsic antibacterial resistance may be part of the genetic makeup of bacterial strains. For example, an antibiotic target may be absent from the bacterial genome. Acquired resistance results from a mutation in the bacterial chromosome or the acquisition of extra-chromosomal DNA. Antibacterial-producing bacteria have evolved resistance mechanisms that have been shown to be similar to, and may have been transferred to, antibacterial-resistant strains. The spread of antibacterial resistance often occurs through vertical transmission of mutations during growth and by genetic recombination of DNA by horizontal genetic exchange. For instance, antibacterial resistance genes can be exchanged between different bacterial strains or species via plasmids that carry these resistance genes. Plasmids that carry several different resistance genes can confer resistance to multiple antibacterials. Cross-resistance to several antibacterials may also occur when a resistance mechanism encoded by a single gene conveys resistance to more than one antibacterial compound.

What do plasmids do in bacterial chromosomes?
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A: unanswerable

Problem: Affirmative action in the United States:

To Secure These Rights also called for desegregation of the Armed Forces. "Prejudice in any area is an ugly, undemocratic phenomenon, but in the armed services, where all men run the risk of death, it is especially repugnant." The rationale was fairness: "When an individual enters the service of the country, he necessarily surrenders some of the rights and privileges which are inherent in American citizenship." In return, the government "undertakes to protect his integrity as an individual." Yet that was not possible in the segregated Army, since "any discrimination whichprevents members of the minority groups from rendering full military service in defense of their country is for them a humiliating badge of inferiority." The report called for an end to "all discrimination and segregation based on race, color, creed, or national origins inall branches of the Armed Services.":3839

What did the findings say occurred to an individual when he leaves the armed services?
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A: unanswerable

Problem: Hard rock:

Hard rock entered the 1990s as one of the dominant forms of commercial music. The multi-platinum releases of AC/DC's The Razors Edge (1990), Guns N' Roses' Use Your Illusion I and Use Your Illusion II (both in 1991), Ozzy Osbourne's No More Tears (1991), and Van Halen's For Unlawful Carnal Knowledge (1991) showcased this popularity. Additionally, The Black Crowes released their debut album, Shake Your Money Maker (1990), which contained a bluesy classic rock sound and sold five million copies. In 1992, Def Leppard followed up 1987's Hysteria with Adrenalize, which went multi-platinum, spawned four Top 40 singles and held the number one spot on the US album chart for five weeks.

In which decade did hard rock see a decline of dominance in commercial music?
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A:
unanswerable