Characteristics of Life

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  1. A rock rolls down a hill and passes from the light of the sun to the darkness of a cave. We know it is not alive, but because it is moving, it seems to be exhibiting which two characteristic of life? (2 answers are correct. Find both.)

    1.   Is made up of cells.
    2.   Maintains homeostatis.
    3.   Uses or makes energy.
    4.   Reproduces within its own species.
    5.   Passes on a genetic code.