Science

8th -

10thgrade

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L.E. Regents August 2018

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52 questions

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  • 1. Multiple Choice
    15 minutes
    1 pt

    Which human activity most directly causes a significant increase in the amount of carbon dioxide in the atmosphere?

    growing corn for food

    not using products containing plastics

    driving cars long distances

    planting large numbers of trees

  • 2. Multiple Choice
    15 minutes
    1 pt

    An immune response is primarily due to the body’s white blood cells recognizing

    a hormone imbalance

    abiotic organisms

    foreign antigens

    known antibiotics

  • 3. Multiple Choice
    15 minutes
    1 pt

    In an effort to reduce the number of deaths due to malaria, scientists have successfully introduced a gene into mosquitoes. The gene makes the mosquitoes unable to support the development of the parasite that causes malaria. The technique used to produce this new variety of mosquito is most likely

    chromatography

    genetic engineering

    electrophoresis of genes

    selective breeding

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