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Across 1. changes that help plants and animals survive in an environment 3. describes an animals whose color or shape helps it to blend into the background 5. alot of nature 6. times of water shortage that causes stress to plants, animals, and people 9. plants and animals that humans have grown or tames 10. stuff you need to survive 11. a group of animals that have hair or fur, warm blood a large brain and feed their young milk

Down 2. parks that spread across several countries 4. people who move from place to place instead of living in one spot 7. animals that hunt and eat other animals 8. the environment in which an organism lives