Characteristics of Life

12345678910111213141516171819202122232425262728
Across
  1. 5. several organ systems that work together; a single living thing
  2. 7. maintenance of a constant internal environment despite external changes
  3. 14. a change in the DNA of an organism
  4. 16. the female gamete
  5. 19. process of capturing light energy to make sugar
  6. 21. an organism made up of two or more cells
  7. 22. several organs that work together
  8. 26. process where individuals with favorable alleles for their environment will be more successful and contribute more offspring to the next generation
  9. 27. an organism made of only one cell
Down
  1. 1. cell theory states that all cells come from __ cells
  2. 2. the process whereby species adapt and change over time
  3. 3. can make its own food
  4. 4. the ability to survive and reproduce in a given environment
  5. 6. the basic unit of life
  6. 8. the structures within cells that carry out the cells' life functions
  7. 9. type of reproduction requiring two parents
  8. 10. needs to consume other organisms for food
  9. 11. scientific term for children
  10. 12. producing energy by breaking larger molecules into smaller ones
  11. 13. using energy to create larger molecules from smaller ones
  12. 15. several tissues that work together
  13. 17. the male gamete
  14. 18. type of reproduction with only one parent
  15. 20. reproductive cells (sperm or egg)
  16. 23. a change in the environment that an organism responds to
  17. 24. without a nucleus
  18. 25. the sum of all chemical reactions in the organism
  19. 28. containing a nucleus