Chemistry Vocab

7. the struggle between individuals of the same or different species for food, space, light, etc.
13. Another name for a homogeneous mixture.
14. a tiny, nonliving particle that invades and then reproduces inside a living cell
15. the quality of water that makes it able to dissolve more substances than any other solvent can
17. The substance that is doing the dissolving when making a solution.
19. basic unit of structure and function in living things

1. the tightness across the surface of water that is caused by the polar molecules pulling on one another
2. the ability of a substance to combine chemically with another substance
3. The tendency of water molecules to stick to each other.
4. Attraction between opposite poles
5. symbiotic relationship in which one member of the association benefits and the other is neither helped nor harmed
6. a symbiotic relationship in which one organism benefits and the other is harmed; example: dog and heartworms
8. matter that has the same chemical composition through- out and cannot be separated into its parts by physical means; examples: elements and compounds
9. a symbiotic relationship between two organisms in which both organisms benefit; example: clown fish and sea anemone
10. The substance that is dissolved when making a solution.
11. states that all organisms are made up of one or more cells, the cell is the basic unit of life, and all cells come from other cells
12. fossils of widely distributed organisms that lived during only one short period
16. the tendency of water to stick to other substances
18. animal that carries pathogens from person to person