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