This document provides a game of tic-tac-toe and questions about ecology terms and concepts. The tic-tac-toe board has 9 squares labeled 1 through 9 for players to select. There are also buttons to record the score if X or O wins. Below are 9 multiple choice questions about succession, pollution, conservation, symbiosis, mutualism, commensalism, parasitism, and examples of each.

1. Welcome to...
A Game of X’s and O’s

2. Inspired by
Presentation
© 2000 - All rights Reserved
markedamon@hotmail.com

3. 1 2 3
4 5 6
7 8 9

4. Scoreboard
1 2 3
X
4 5 6
O
7 8 9
Click Here if
X Wins
Click Here if
O Wins

5. 1
What can cause succession in an
ecosystem?

6. 1
Organisms in an ecosystem, change
in climate, adding new plants or
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animals

7. 2
What is secondary succession?

8. 2
When damaged ecosystem naturally rebuild
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9. 3
What is extinction?

10. 3
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Death of an entire species

11. 4
Give two examples of pollution

12. 4
Acid rain, chemicals, burning fossil
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13. 5
What are the three ways we can
conserve ecosystems?

14. 5
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Reduce, reuse, recycle

15. 6
What is symbiosis?

16. 6
The relationship between
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17. 7
What is mutualism and give an example.

18. 7
When both organisms benefit. Example: ant
and aphids, birds and rhino
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19. 8
What is commensalism and
give an example.

20. 8
When one animal benefits from the
relationship but the other isn’t affected.
Example: remora and shark, barnacles and
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21. 9
What is parasitism and give an
example of a parasite and a host.

22. 9
When one organism benefits and the other
is harmed. Example: roundworm/tapeworm,
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