Biodiversity Crossword
Across
7. Illegal for Americans to import/trade in product from an endangered species except to propagate the species
9. A species that once introduced spreads rapidly
12. A group of closely related organisms that are able to breed with one another and produce fertile offspring
15. expected natural rate of extinction
17. Prevents interstate commerce in illegally killed wildlife
19. species can not longer be found
20. abbreviation for species survival plan
23. terms for animals that are traditionally hunted
25. Species that serve as early warnings that a community or ecosystem is being degraded.
27. A species introduced into an ecosystem
Down
1. beneficial to humans
2. A group of organisms of the same species within a geographic area
3. Species that normally live and thrive in a particular ecosystem
4. Species that migrate into an ecosystem or are deliberately or accidentally introduced into an ecosystem by humans.
5. Value for its own sake
6. few individuals & species can become extinct.
7. Variety of ecosystems.
8. Abundant but numbers are declining
10. another term for exotic or nonnative species
11. another terms for nonnative or alien species
13. biggest threat to a species
14. Is a measure of the variety of a system.
16. Genetic variability among individuals within a species.
18. Variety of different species populating an ecosystem.
19. tourism of ecologically unique or interesting sites
21. A catastrophic event that results in the extinction of large number of species.
22. Species that play roles affecting many other organisms in an ecosystem
24. Species found only in one area
26. A group of populations in an area that interact with one another