1							2
						3		4					5
6				7
8
																			9
								10													11
								12
																	13
					14						15
							16
17
													18
															19
		20
		21

Across 1. a__ has abiotic components such as oxygen 4. an exterior abiotic factor that consists of ocean water 8. the number of members of one specific species in a ecosystem 10. a relationship where one gains while the other is uneffected 12. the distance measured in degrees north or south of the equator 16. term used to describe what predators do to organisms 17. a place which an organisn lives 18. required for plant and animal growth 20. a chemical reaction that requires light 21. the term for an enviorment's non-living components

Down 2. a__ consists of organisms, population,community and ecosystem 3. a relationship where both gain 5. a place where multiple populations of species interact 6. group of related organisms that can reproduce with each other 7. height of land mass above sea level 9. a harmful interaction between 2 or more organisms 11. refers to interactions between2 species that live close together 13. the term for an enviorment's living components 14. the characteristics in organisms that allow them to adapt 15. a relation where one gains and the other loses 19. __are used to describe special roles of specific organisms