Biology

9th -

12thgrade

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Living Systems

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15 questions

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  • 1. Multiple Choice
    1 minute
    1 pt
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    Which of these best explains the next level of organization in this model?

    protein

    mitochondria

    muscle cells

    atom

  • 2. Multiple Choice
    1 minute
    1 pt

    Scientists are developing a new class of vaccines, known as nanovaccines. A study found evidence that nanovaccines boost the immune response in mice. The scientists reported their initial findings to other scientists. What is the most logical next step in the development process?

    determine the best way to ship large quantities of the vaccine

    replicate the nanovaccine results in further studies

    collect data on the impact of vaccines in the developing world

    produce larger quantities of vaccine for use on people

  • 3. Multiple Choice
    1 minute
    1 pt

    In the trachea there is a layer of epithelial cells that produce mucus. The function of the mucus is to keep the trachea moist which catches debris and bacteria going to the lungs. What is this an example of?

    Cells working to maintain homeostasis.

    Cells working to produce energy for the body.

    Organs working together to maintain homeostasis.

    Organs working together to produce energy for the body.

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