IXL A.1 Grade 9 Study Questions
Camera-Like Memory
Do some individuals have the amazing ability to take perfectly accurate, permanent mental
"snapshots," which can be stored in the brain for future retrieval? Fictiona
...
IXL A.1 Grade 9 Study Questions
Camera-Like Memory
Do some individuals have the amazing ability to take perfectly accurate, permanent mental
"snapshots," which can be stored in the brain for future retrieval? Fictional figures aside, no. But
while this popular notion of "photographic memory" is unfounded, research has demonstrated
the existence of a fascinating phenomenon called eidetic memory, in which memory actually
does have a camera-like quality. People with eidetic memory are able to look at an object or
picture and then look away or close their eyes and continue to "see" the object or picture in their
minds. These images last only a few minutes at most before dissipating, and they are typically
not entirely accurate. Still, the degree of detail that "eidetikers" can recall during those first few
minutes is astonishing. Interestingly, the phenomenon occurs almost entirely in children, with an
estimated two to ten percent of children affected; virtually all eidetikers lose their unusual ability
before reaching adulthood. - ✔✔Individuals with eidetic memory are temporarily able to retain
detailed images in their minds.
These images last only a few minutes at most before dissipating, and they are typically not
entirely accurate. - ✔✔It highlights the limitations of eidetic memory.
Maggots as Medicine
While serving in World War I, surgeon William Baer noticed something curious: soldiers whose
wounds were infested with maggots (the wormlike immature larval form of flies) recovered
faster than those whose wounds were maggot-free. Although Baer was not the first military
doctor to take note of this phenomenon, he was the first to apply his observations to the problem
of nonhealing wounds. In the 1920s, he began treating hospital patients' serious wounds with
maggots. The maggots consumed dead tissue, effectively cleaning the wounds and helping the
patients heal. While maggot therapy fell out of favor after bacteria-killing antibiotic medications
were introduced, it has made a comeback in modern medicine. Many clinicians have found that
the treatment can be effective for certain types of severe wounds that do not respond to
antibiotics. - ✔✔As noted by William Baer, some severe wounds can be effectively treated with
maggots, which consume dead tissue.
Many clinicians have found that the treatment can be effective for certain types of severe wounds
that do not respond to antibiotics. - ✔✔It establishes the modern-day relevance of maggot
therapy.
A Step for Democracy
One of the most important years in the history of democracy was 1215, when King John of
England signed a document called the Magna Carta. Among other things, the Magna Carta made
it illegal to buy or bribe one's way out of legal trouble—previously a common practice. More
important, the Magna Carta made it clear that the king of England could not change laws or
impose taxes w
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