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  • What is biology?

    Biology is the scientific study of life.

  • What does the suffix '-ology' mean?

    The suffix '-ology' means 'the study of'.

  • What is the smallest, most basic unit of life?

    The cell is the smallest, most basic unit of life.

  • What is the difference between unicellular and multicellular organisms?

    Unicellular organisms consist of a single cell; multicellular organisms consist of many cells.

  • List the eight characteristics of life.

    1) Composed of cells.
    2) Use smaller structures to build larger ones.
    3) Respond to environmental stimuli.
    4) Maintain homeostasis.
    5) Reproduce sexually or asexually.
    6) Have a dynamic metabolism.
    7) Store genetic information (DNA).
    8) Undergo evolution.

  • What is homeostasis?

    Homeostasis is the maintenance of a stable internal environment despite external changes.

  • What is the hierarchical organization of life from smallest to largest?

    Atom → Molecule → Organelle → Cell → Tissue → Organ → Organ System → Organism → Population → Community → Ecosystem → Biosphere.

  • What are emergent properties?

    Emergent properties are new properties that arise when smaller parts combine, which individual parts do not have.