Adaptation

5. tiny cave where small animals can live in it, found in deserts or tundra
6. whole species has very low population (very few number)
7. very small microscopic sacs at the end of bronchioles that have big role in getting oxygen from air
11. it's the travel of animals, birds and fishes from cold habitat to warm habitats
12. very large place similar to the desert but has very low temperature
14. change done in a body part by living organisms (animals or plants) to survive their environment
16. special type of animals that can breathe under and above water
18. process where air filled with carbon dioxide get out of lungs
21. property where animals have two opposite colors on their back and belly
22. the system responsible to get oxygen from the air to help the digestive system to get the energy needed from breaking down food
23. it's a system where food is broken down to get the needed energy

1. process where oxygenated air get into lungs
2. they are liquids secreted by the digestive system to help in breaking down the food
3. process done to get oxygen gas from the air and needed energy from food
4. a change in the act done by living organisms (animals or plants) to survive
8. area of land covered by water, that humans can walk in it
9. process done where food is broken down into smaller pieces to get the needed energy
10. it's how animals hide in the surroundings from their enemies
13. very large habitat where it's covered by huge amount of grass
15. whole species disappears from the whole world
17. the change done living organisms to survive their habitat
19. the living plac of animals or plants
20. type of soil that has very large amount of water, found in Amazon rain forests