Across
- 1. A group of animals that share the same characteristics
- 7. At risk of no longer existing
- 9. The term for animals that are wild and live in the natural environment
- 11. When an animal no longer exists
- 12. To be at risk of danger
- 14. Those who are responsible for controlling a country or a state
- 15. The total number of animals who live in an area
- 17. To become fewer
- 18. The protection of the natural environment
Down
- 2. The natural world in which people, animals, and plants live
- 3. The process of doing something to make a change
- 4. An animal that kills and eats other animals
- 5. The place where a type of animal is normally found
- 6. To make sure something is not harmed
- 8. When animals produce young
- 10. Weak or easily hurt
- 13. To change in order to survive
- 16. The effect that something has on something else