Vocabulary

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araceliloveee
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236241
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Vocabulary
Updated:
2013-09-21 22:53:56
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vocab
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Chapter 1
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  1. BACTERIA
    • One of two prokaryotic domains of life
    • (the other being Archea)
  2. THEORY
    A widely accepted explanatory idea that is broad in scope and supported by a large body of evidence
  3. ORGAN SYSTEM
    A group of organs that work together in performing vital body functions
  4. ORGAN SYSTEM
    A group of organs that work together in performing vital body functions
  5. ORGANISM
    • An individual living thing
    • ex: such as a bacterium, fungus, protest, plant or animal.
  6. MOLECULE
    A group of two or more atoms held together by covalent bonds
  7. COMMUNITY
    An assemblage of all the organisms living together and potentially interacting in a particular area.
  8. TECHNOLOGY
    The practical application of scientific knowledge
  9. PRODUCER
    • An organism that makes organic food molecules
    • from CO2 , H20 and other inorganic raw materials: a plant, alga
  10. PROKARYOTIC CELL
    A type of cell lacking a membrane-enclosed nucleus and other membrane-enclosed organelles; found only in the domains Bacteria and Archaea.
  11. HYPOTHESIS
    A tentative explanation a scientist proposes for a specific phenomenon that has been observed.
  12. GENE
    A discrete unit of hereditary information consisting of a specific nucleotide sequence in DNA (or RNA in some viruses)
  13. EUKARYA
    The domain that includes all eukaryotic organisms.
  14. ORGAN
    A structure consisting of several tissues adapted as a group to perform specific functions.
  15. EVOLUTION
    • Descent with modification
    • (the idea that living species are descendants of ancestral species that were different from present-day ones; also the genetic changes in a population over generations)
  16. ORGANELLE
    A membrane-enclosed structure with a specialized function within a cell
  17. SPECIES
    A group whose members possess similar characteristics and have the ability to interbreed and produce fertile offspring,
  18. CELL
    a basic unit of living matter separated from its environment by a plasma membrane; the fundamental structural unit of life
  19. DOMAIN
    A taxonomic category above the kingdom level. The three domains of life are Archaea, Bacteria, and Eukarya
  20. ARCHAEA
    One of two prokaryotic domains of life, the other being Bacteria
  21. CONTROLLED EXPERIMENT
    A component of the process of science whereby a scientist carries out two parallel test, an experimental test and a control test. The experimental test differs from the control by one factor, the variable.
  22. POPULATION
    A group of individuals belonging to one species and living in the same geographic area.
  23. SYSTEMS BIOLOGY
    An approach to studying biology that aims to model the dynamic behavior of whole biological systems
  24. EMERGENT PROPERTIES
    New properties that emerge with each step upward in the hierarchy of life, owing to the arrangement and interactions of parts as complexity increases
  25. NATURAL SELECTION
    A process in which organisms with certain inherited characteristics are more likely to survive and reproduce than are organisms with other characteristics.
  26. BIOLOGY
    The scientific study of life
  27. ECOSYSTEM
    All the organisms in a given area, along with the nonliving factors with which they interact; a biological community and its physical environment
  28. CONSUMER
    An organism that obtains its food by eating plants or by eating animals that have eaten plants
  29. TISSUE
    An integrated group of cells with a common function, structure, or both
  30. EUKARYOTIC CELL
    A type of cell that has a membrane-enclosed nucleus and other membrane-enclosed organelles. All organisms except bacteria and archaea are composed of eukaryotic cells
  31. BIOSPHERE
    The entire portion of Earth inhabited by  life; the sum of all the planet's ecosystems
  32. What are the properties of life?
    Order, Reproduction, growth and development, energy processing, response to the environment, regulation, and evolutionary adaptation.
  33. Levels of biological organization from smallest to largest:
    molecules, organelles, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystems, biosphere
  34. Hypothesis-based science follows five steps:
    • 1.Observations
    • 2.Question
    • 3.Hypthesis
    • 4.Predicition
    • 5.Test:experiment or additional observation.

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