Across
- 7. Six major categories into which all organisms are grouped
- 9. The high degree of order within an organism's internal and external parts and in its interactions with the living world
- 12. Large and complex organic molecules that store and transfer important information in the cell
- 15. Adenosine triphosphate; the powerhouse in a cell
- 18. A chemical reaction during which monomers link to form polymers
- 20. Substances that cannot be broken down chemically into simpler kinds of matter
Down
- 1. The attraction between molecules that results in the rise of the surface of a liquid when in contact with a solid
- 2. A trait that improves an individual's ability to survive and reproduce
- 3. A statement that forecasts what would happen in a test situation if the hypothesis were true
- 4. A proposed explanation for the way a particular aspect of the natural world functions
- 5. The branch of biology that studies organisms interacting with each other and with the environment
- 6. A three-dimensional region around a nucleus that indicates the probable location of an electron
- 8. The manipulated variable
- 10. A large polymer
- 11. The amount of energy needed to start a reaction
- 13. An organized approach, or method, to learn how the natural world works
- 14. A chain of amino acids
- 16. The substance in which the solute is dissolved
- 17. A common measurement system used in all parts of the world
- 19. The reactant being catalyzed by an enzyme