Across
- 4. When a slight attraction develops between oppositely charged regions of nearby molecules
- 7. number of individuals in an area.
- 9. When an ecosystem only has 1 nutrient that is scarce or slow cycling
- 10. One or more electrons are transferred from one atom to another
- 11. or orientation releases waste materials
- 12. factors that shape an ecosystem, things that make the ecosystem a place where organisms are able to live
- 14. provides support for the body and connects its ports
- 15. organisms receping internal conditions despite changes in external environment
- 16. Feeds on plant and animal remains and other dead matter for energy
- 17. All organisms in an area plus the nonliving environment
- 19. mixtures of water and non dissolved material. ex. blood
- 20. Uneven disturbance of charge, water is negative on oxygen end and positive on the hydrogen end
- 23. transmits nerve impulses throughout the body
- 24. obtaining and using food
Down
- 1. Forms when electrons are shared between atoms
- 2. Attraction between molecules of different substances causes capillary action
- 3. No two species can occupy the same niche in the same habitat at the same time
- 5. A disturbance in oxygen
- 6. Includes glands and tissues that cover interior and exterior surfaces.
- 8. along with bones, enables the body to move
- 13. biological influences, includes the organism itself and things it might interact with
- 18. Total living tissue with a trophic level
- 19. Any relationship in which two species live closely together
- 21. atoms of the same element, differ in the number of neutrons
- 22. An attraction between molecules of the same substance. Causes water molecules on a surface to form drops