symb

	1		2		3
4				5



		6

7



	8

Across

4. An organism that a parasite lives on or in, and it is used as a food source for the parasite

6. something that is good or helpful

7. one organism is helped and the other is hurt

8. relationship where both organisms are helped.

Down

1. when one organism is helped and the other is not hurt or helped.

2. not bothered or helped

3. An organism that harms another to obtain food from it

5. A relationship in which two different organisms live

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