Across
- 6. The reaction to a stimulus is a ______.
- 7. An _____ is any inherited characteristic that results from changes to a species over time.
- 8. Regulation of an organisms internal conditions to maintain life is called ______.
- 10. ______ is the process of natural changes that take place during the life of an organism.
Down
- 1. A _____ is a group of organisms that can breed with one another and produce fertile offspring.
- 2. Every living organism has one or more ______.
- 3. _______ make discoveries and seek explanations by preforming laboratory and field investigations.
- 4. Living things also display ______.
- 5. ______ results in the addition of mass to an organism.
- 9. A reaction by an organism is called a ______.