Biology Mid-terms

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Author:
mad17daph
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129483
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Biology Mid-terms
Updated:
2012-01-21 18:24:20
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Biology
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Chapters 1-18
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  1. What branch of science studies the origin, structure, and function of living things?
    Ecolology
  2. Anything that has or once had all the characteristics of life.
    Organisms
  3. Process that results in mass being added to an organism; may include formation of new cells and new structures
    Growth
  4. Group of organisms that can interbreed and produce fertile offspring
    Species
  5. Relatively thin layer of Earth and its atmosphere that supports life.
    Biosphere
  6. Any living factor in an organism's environment.
    Biotic Factor
  7. Biological community and all the nonliving.
    Ecosystem
  8. An organism that produces its own food supply. They also supply others with food energy.
    Autotroph
  9. An organism that cannot make its own food.
    Heterotroph
  10. A heterotroph that decomposes organic material and returns the nutrients to soil, air, and water, making the nutrients available to other organisms.
    Detritivore
  11. Each step in food chain or food web.
    Trophic level
  12. Simplified model that shows a single path for energy flow through an ecosystem.
    Food chain
  13. Model that shows many interconnected food chains and pathways in which energy and matter flow through an ecosystem.
    Food web
  14. Total mass of living matter at each trophic level.
    Biomass
  15. Anything that takes up space and has mass
    Matter
  16. Chemical substance that living organisms obtain from the enviornment to carry out life processes and sustain life
    Nutrient.
  17. Process in which nitrogen gas is captured and converted into a form plants can use.
    Nitrogen fixation
  18. Process in which fixed nitrogen compounds are converted back into nitrogen gas and returned to the atmosphere
    Denitrification
  19. Distance of a point on Earth's surface north or south of the equator.
    • Latitude
  20. Treeles biome with permantently frozen soil under the surface and average yearly precipitation of 15 - 25 cm.
    Tundra
  21. Biome south of the tundra with dense evergreen forests and long, cold, dry winters.
    Boreal forest.
  22. Biome characterized by small trees and mixed shrub communties
    Woodland
  23. Biome characterized by grasses and scattered trees, and herd animals such as zebras and antelopes.
    Tropical savanna
  24. Material deposited by water, wind, or glaciers.
    Sediment
  25. Area of a lake or pond closest to the shore
    Littoral zone

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