Biology Vocabulary Semester 2

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Across
  1. 2. respiration the process by which cells produce energy from energy
  2. 5. the naturel process that occurs in the environment by nitrogen compounds are sequentially oxidized to nitrite and nitrate.
  3. 8. trait a characteristic such as height or skin color
  4. 9. any difference between individuals in a species or groups of organisms of any species
  5. 11. measure of how acidic or basic a substance or solution is
  6. 13. the process by which green plants or certain other organisms transforms light energy into chemical energy
  7. 15. the basic unit of heredity passed from parent to child
  8. 17. the process through which populations of living organisms adapt and change
  9. 19. an individual's complete set of chromosomes
  10. 20. the diagram of family history that uses standardized symbols
Down
  1. 1. the evolutionary process whereby an organism becomes better able to live in it's habitat
  2. 3. When an organism excretes waste or dies, the nitrogen in its tissues is in the form of organic nitrogen (e.g. amino acids, DNA).
  3. 4. the naturel movement of particles from an area of higher concentration to an area of lower concentration
  4. 6. an organism, often a bacterium
  5. 7. cycle a biochemical process through where nitrogen is converted
  6. 10. the process by which living organisms convert food into vitamins
  7. 11. the observation of physical properties of an organism
  8. 12. the presence of two complete sets of chromosome's
  9. 14. one of two or more versions of a genetic sequence
  10. 16. the genetic constitution of an individual organism
  11. 18. submicroscopic infectious agent that replicates only inside the living cells of an organism.