Endangered Species

1. these species invade, and crowd the native species
4. a person who has extensive skill or knowledge in a particular field
10. a place where live animals are kept, studied, bred, and exhibited to the public
11. wild animals and plants collectively
13. ... is a word that means gone forever
14. word meaning "in immediate danger of extinction"
16. the natural environment of an organism

2. word meaning a species could become endangered in foreseeable future
3. a word meaning the vast variety of life in all its forms
5. a system involving the interactions between a community of living organisms in a particular area and its nonliving environment
6. an acronym for the fish/wildlife federal agency that protects endangered species and habitats and manages the National Wildlife Refuge System
7. national symbol, and endangered species success story
8. harmful or poisonous substances introduced into an environment
9. ultimate goal, for every species, of the Endangered Species Act
12. a type of large elephant,now extinct,that was covered in hair and had tusks
15. the abbreviation for the Endangered Species Act