Trivial Practice Quiz science-technology - Test 107 | Englishfreetest.com

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  • Test content
    Question 1: What feature would Pluto develop if placed as near to the Sun as Earth is?
    A. A comet tail
    B. A highly elliptic orbit
    C. None of these
    D. A halo
    Question 2: Pluto was the ninth planet of the Solar System for 76 years - from its discovery in 1930 until 2006 when it was reclassified as a dwarf planet.
    A. False
    B. True
    Question 3: The reclassification of Pluto as a dwarf planet in 2006 caused the emerging of what?
    A. Risings among astronomy teaches in the USA
    B. New ethnical conflicts in the Middle East
    C. New word in English
    D. A sect of violent Pluto followers
    Question 4: Viruses are so small that you need a special light microscopе to observe most of them.
    A. True
    B. False
    Question 5: How do viruses reproduce?
    A. By transforming other cells into viruses
    B. By cell division
    C. By maitng
    D. By forcing other cells to produce copies of them
    Question 6: In virology, what does the term vector refer to?
    A. An organism that carries a virus but is not infected by it
    B. An organism infected by a virus
    C. A virus that does not parasite on cells but lives independently
    D. A virus that spreads through the air
    Question 7: Bacteriophages are organisms that have the characteristics of both viruses and bacteria.
    A. False
    B. True
    Question 8: Virus fossils from several thousand years ago show what about the origin of viruses?
    A. None of these
    B. They were once small cells that lived parasitically on bigger ones.
    C. They appeared and evolved simultaneously with life on Earth.
    D. They evolved from bits of DNA that escaped from cells of organisms.
    Question 9: When infected by a virus, the bodies of animals and humans start producing a special hormone - interferon. How does interferon help the organism fight virus infections?
    A. By releasing in the body acids fatal for the viruses
    B. By stimulating it to produce antibodies
    C. By boosting the production of white blood cells
    D. By killing the infected cells and their neighbouring cells
    Question 10: Which of the following is not one of the defense mechanisms against viruses in humans?
    A. Acid nature of the stomach contents
    B. RNA interference
    C. Production of antibodies
    D. The resistance (R) gene
    Question 11: Antibiotics are used to treat virus infections in animals and humans but are ineffective in plant virus infections.
    A. True
    B. False
    Question 12: Which stage of the virus life-cycle restricts it to infecting only a certain species (or group) of organisms?
    A. Assembly of viral particles
    B. Replication of the viral DNA or RNA
    C. Release of viral particles
    D. Attachment to host
    Question 13: Which of these is not one of the methods used by viruses to make the host cell release the newly produced viruses?
    A. Apoptosis
    B. Budding
    C. Virosis
    D. Lysis
    Question 14: Mount Rumpke is the highest point and the biggest landfill in Ohio. Its technical name is The Rumpke Sanitary Landfill.
    A. True
    B. False
    Question 15: Approximately how many trees does it take to make one ton of paper?
    A. 170
    B. 34
    C. 1100
    D. 17