Introduction to Biology
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Questions and Answers

What is biology focused on?

  • The structure of cells
  • The ecosystem as a whole
  • Life (correct)
  • The process of metabolism

    • What is the basic unit of organization for all life forms?

  • Molecules
  • Tissues
  • Organs
  • Cells (correct)

    • Why do viruses not fully meet the definition of 'life'?

  • They are too small
  • They cannot grow
  • They are not made of cells
  • They depend on cells for their reproduction (correct)

    • What is a key feature of biology and all other sciences?

    <p>The application of scientific inquiry</p> Signup and view all the answers

    What is a characteristic of life?

    <p>Senses and responds to changes in the external environment</p> Signup and view all the answers

    What do scientists form based on existing knowledge and observations?

    <p>Hypotheses</p> Signup and view all the answers

    What is a nonscientific claim?

    <p>A hypothesis that cannot be effectively tested by verifiable observations or experiments</p> Signup and view all the answers

    What emerges from interactions among cells?

    <p>The properties of tissues and organs</p> Signup and view all the answers

    Study Notes

    Biology and Its Place in Science

    • Biology is a science focused on life and its various aspects.
    • The course covers the foundations of biology, including chemistry, cells, and metabolism.

    Definition of Life

    • The definition of life centers on the cell, which is the basic unit of organization for all life forms.
    • Characteristics of life include:
      • Growing using raw materials and energy
      • Reproducing with the help of DNA as genetic material
      • Sensing and responding to changes in the external environment

    Exclusion of Viruses from the Definition of Life

    • Viruses do not fully meet the definition of "life" because they depend on cells for their reproduction.

    Organization of Life

    • Atoms and molecules organized in a particular way generate a living (biotic) cell capable of growth and reproduction.
    • Properties of tissues and organs emerge from interactions among cells.
    • Tissues and organs combine to form an organism, and multiple organisms give rise to populations, communities, and complex ecosystems.

    Scientific Inquiry in Biology

    • Biology, like all sciences, develops through the application of scientific inquiry.
    • Scientific inquiry involves:
      • Asking questions
      • Forming hypotheses based on existing knowledge and observations
      • Testing hypotheses through experiments or observations
      • Analyzing data to determine whether the hypothesis is supported
    • A nonscientific claim is a hypothesis that cannot be effectively tested by verifiable observations or experiments.

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    Description

    Learn about the foundations of biology, including chemistry, cells, and metabolism. Understand the definition of life and its basic units of organization.

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