Characteristics of Life

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Across
  1. 2. basic unit of structure and function in all living things
  2. 4. a tadpole develops into a frog over many weeks is an example of this characteristic
  3. 6. groups of tissues working together
  4. 7. union of sperm from the male and egg from the female
  5. 9. universal genetic code for growth and development
  6. 12. fire may appear to grow,move,respond to the environment, and use energy, but it doesn't contain _____ therefore is not living
  7. 13. causes an organism to respond to it's environment
  8. 14. the study of living things
  9. 15. process of maintaining a constant, stable internal environment
  10. 16. living and non-living things occupying a certain environment
Down
  1. 1. groups pf organisms of the same species working together
  2. 3. environmental factors alter the shape of an organism over time
  3. 5. individual living thing
  4. 8. groups of cells living together
  5. 10. an organism breaking down or building up chemicals
  6. 11. groups of populations living together