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Ch 1.1 The Study of Life Reveals Unifying Themes

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  • What is biology?

    Asking questions about the living world and seeking answers through scientific inquiry are central activities in biology

  • Biological Community

    All organisms living in a particular ecosystem

  • What is the primary source of energy in the ecosystem?

    Light (sun) energy

  • What is an ecosystem

    All living organisms in a particular area along with all non-living aspects of the environment with which organisms interact

  • The sequence in which energy flows through the ecosystem

    Light - chemical - release of heat

  • What an examples of biological organization smallest to largest

    Cell-organism-population-community-ecosystem

  • What produced all the oxygen in Earth's atmosphere?

    Plants and other photosynthetic organisms

  • Single cell organism isolated from ancient peat bog with a cell wall and nucleus

    Eukarya

  • What happens with chemical elements in the ecosystem ?

    Recycle with in ecosystem being constantly reused

  • Why is DNA known universally

    All living things share common genetic language because DNA has common ancestry.