Honors Bio ch1

  1. Inference
    A conclusion made on the basis of facts or premises rather than direct obsevations.
  2. Scanning Electron Microscope
    A microscope that provides a three-dimensional image of a specimen by passing electrons over the specimen's surface.
  3. Gene
    A short segment of DNA that contains the instructions for the development of a single trait of an organism.
  4. Prediction
    A statement made in advance that states the results that will be obtained from testing a hypothesis, if the hypothesis is supported.
  5. Hypothesis
    A suggested explanation that explains scientists observations and can be tested.
  6. Compound Light Microscope
    A type of microscope that magnifies objects as they pass through two or more lenses.
  7. Observation
    Act of perceiving a natural occurance that causes somkeone to pose a question.
  8. Independant
    An experimentally manipulate variable.
  9. Theory
    An explanation for some phenomenon that is based on observation, experimentation, and reasoning.
  10. Ecosystem
    Communities of living species and their physical environments.
  11. Asexual
    form of reproduction in which hereditary information from different organsisms is not combined.
  12. Tissue
    Group of cells that have similar abilities and that allow the organ to function.
  13. Magnification
    Increase in an objects apparent size.
  14. DNA
    Large molecule in which hereditary information is encoded.
  15. Transmission Electron Microscope
    Microscope that transmits a beam of electrons through a specimen and projects an enlarged image of that specimen on a screen or plate.
  16. Base Unit
    One of seven fundamental units that describe length, mass, time, and other quantities.
  17. Multicellular
    Organisms that are composed of more than one cell.
  18. Unicellular
    Organisms that are composed of only one cell.
  19. Peer Review
    Process by which scientist who are experts in the field anonymously read and critique research papers.
  20. Reproduction
    Process in which organisms transmit hereditary information to their offspring.
  21. Experiment
    Process of testing a hypothesis by gathering data under controlled circumstances.
  22. Derived Units
    Produced by the mathematical relationship between two base units.
  23. Control Group
    • Provides a normal standard against which the biologist can compare results to the experimental group.
    • (lab boys told me i shouldnt tell you about the control group)
  24. Sexual
    Reproduction in which hereditary information from two organisms of the same species is combined.
  25. Ecology
    Scientific study of the interactions among organisms and betweem organisms and their environment.
  26. Metric System
    Single, standard system of measurement used by scientists
  27. Cell
    Smallest unit that can perform all life's processes.
  28. Organs
    Structure that carry out specialized jobs within an organ system.
  29. Metabolism
    Sum of all the chemical processes that occur in an organism; a balance of anabolism.
  30. Biological Molecule
    The chemical compounds that provide physical structure and that bring about movement, energy use, and other cellular functions.
  31. Cell Division
    The formation of two cells from an existing cell.
  32. Experimental Group
    The group in a controlled experiment in which the independant variable is applied.
  33. Organization
    The high dfegree of order within an organism's internal and external parts and in its interactions with the living world.
  34. Resolution
    The power of a microscope to show clear details.
  35. Development
    The process by which an organism becomes a mature adult.
  36. Photosynthesis
    The process by which plants and some unicellular organisms produce glucose and oxygen by taking in carbon dioxide and sunlight.
  37. Dependant
    The responding variable in an experiment.
  38. Biology
    The study of living things.
  39. Evolution
    The term used to describe a change over time; descent with modification.
  40. Natural Selection
    Theory that states that organisms that have favorable traits are better able to survive and reproduce more successfully.
  41. Homeostasis
    This term describes the stable level of internal conditions that living things are able to maintain.
  42. Organelle
    Tiny structures that carry out functions necessary for the cell to stay alive.
  43. Adaptation
    Traits that improve an individual's ability to survive and reproduce.
Card Set
Honors Bio ch1