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Chapter #1 Vocabulary

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  • Genes

    A segment of DNA that provides instructions to cells for making molecules.

  • Eukaryotic Cells

    A complex cell that has a defined nucleus containing its DNA.

  • RNA

    Is a vital molecule that acts as the cell's messenger and worker.

  • Taxonomy

    The science of naming, describing and classifying organisms.

  • Genomes

    The entire library of genetic instructions.

  • Natural Selection

    The process where organisms better adapted to their environment tend to survive and produce more offspring.

  • Theory of Evolution

    Is the process of change that has transformed life on earth.

  • Prokaryotic Cells

    A simple, single-celled organism that lacks a nucleus.

  • Qualitative Data

    • Non-numerical

    • Describing something

  • Quantitative Data

    • Measurements

    • Numbers

  • Hypothesis

    A tentative, testable and falsifiable explanation for an observed natural phenomenon.

  • DNA

    The molecule that carries the genetic instructions for the development, functioning and reproduction of all known living organisms.

  • Negative Feedback

    • The response reduces the initial stimulus.

    • Most common

  • Positive Feedback

    In which an end product speeds up its own production.