BC Science 8 Quiz: 1.1 Observing Living Things

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    Single-celled organisms are called _________.

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About This Quiz

Questions for the BC Student to practice for quizzes, tests, and exams.

Observation Quizzes & Trivia

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  • 2. 

    An organism made up of many cells is known as ___________.

    • A complex organism.

    • A multicellular organism.

    • An intelligent organism.

    • An organism capable of reproducing.

    Correct Answer
    A. A multicellular organism.
    Explanation
    An organism made up of many cells is known as a multicellular organism because multicellular organisms are composed of multiple cells that work together to perform various functions and maintain the overall health and functioning of the organism. This is in contrast to unicellular organisms, which are made up of only one cell. The term "multicellular" refers to the presence of multiple cells, indicating a higher level of complexity and specialization in the organism's structure and function.

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  • 3. 

    Which is not a characteristic of ALL living things?

    • Living things respond to their environment.

    • Living things breathe.

    • Living things must get rid of wastes.

    • Living things grow.

    • Living things need energy.

    Correct Answer
    A. Living things breathe.
    Explanation
    Not all living things require a respiratory system and breathing capabilities. For example, plants survive without breathing - they instead furl themselves through photosynthesis.

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  • 4. 

    Yukuno has decided that the object she is viewing through the microscope requires the high-power objective lens. How should she focus the image while viewing the object at high-power?

    • She should turn the fine focus knob.

    • She should turn the coarse focus knob.

    • She should get glasses.

    • She should distance the eyepiece lens from the objective lens.

    Correct Answer
    A. She should turn the fine focus knob.
    Explanation
    When viewing an object through a microscope with the high-power objective lens, the fine focus knob should be used to focus the image. The fine focus knob allows for small adjustments to be made to bring the object into clear focus. The coarse focus knob, on the other hand, is used when initially focusing the image at low power and should not be used when viewing the object at high-power. Getting glasses or distancing the eyepiece lens from the objective lens are not relevant actions for focusing the image in this scenario.

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  • 5. 

    Mr. Sitzofritz is trying to find the total magnification power of his compound light microscope. He knows that he is using a typical compound light microscope while viewing an object at medium-power. What is the total magnification power?

    • 50X

    • 400 000X

    • 35X

    • 100X

    • 2X

    Correct Answer
    A. 100X
    Explanation
    10X = eyepiece lens
    10X = medium-power objective lens.
    Total magnification = 100X (multiplication)

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  • 6. 

    A compound light microscope uses two lenses, and a light source. They can help you focus on two details or things that are very close together, and indistinguishable to the human eye. This is called ____________________.

    • Zooming in.

    • Magnification power.

    • Microscopic separation.

    • Resolving power.

    Correct Answer
    A. Resolving power.
    Explanation
    A compound light microscope uses two lenses and a light source to enhance the resolving power. Resolving power refers to the ability of the microscope to distinguish between two closely spaced objects or details that are indistinguishable to the human eye. By using multiple lenses and a light source, the microscope can increase the resolving power, allowing for better clarity and visibility of fine details.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 28, 2010
    Quiz Created by
    Studanto
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