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