Biology I - Crossword #1: Words starting with the letters B and C

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Across
  1. 4. particular preference or point of view that is personal, rather than scientific
  2. 6. total of the variety of organisms in the biosphere, also called biological diversity
  3. 7. scientific study of life
  4. 8. disorder in which some of the body’s cells lose the ability to control growth
  5. 11. organisms that live attached to or near the bottom of lakes, streams, or oceans
Down
  1. 1. a group of ecosystems that share similar climates and typical organisms
  2. 2. dense covering formed by the leafy tops of tall rain forest trees
  3. 3. organism that obtains energy by eating animals
  4. 5. total amount of living tissue within a given trophic level
  5. 6. part of Earth which life exists including land, water, and air or atmosphere
  6. 8. measure of heat energy in food
  7. 9. substance that speeds up the rate of a chemical reaction
  8. 10. basic unit of all forms of life