Across
- 3. A biome where permafrost happens
- 6. A body system that returns fluid from the tissues back to the heart
- 7. A process by which all living things maintain a stable internal environment by regulating all the chemical processes
- 8. A type of plant that requires yearly planting
- 11. A glands that is known to be associated with the Endocrine System-it is found inside the front of the neck
- 13. An order of marine mammals with an air hole
- 14. When two organisms live in a relationship where one is harmed
- 15. A joint-footed marine organism with 2 body parts
- 17. An Order of marine mammals that are flipper footed
- 19. The soft body of a mollusk is covered by this thin layer of tissue.
- 21. A branch of Biology that focuses on cell structure and function
- 22. An Order of marine mammals that are slow moving plant eaters
- 24. When two organisms live in a relationship where both will benefit
- 25. When two organisms live in a relationship where one benefits
Down
- 1. a respiratory also organ that is also called the windpipe
- 2. Non-Bony fish, with cartilage, are grouped into a class called
- 4. A marine organism with 5 radiating parts, one oral side and one aboral side
- 5. a South American Grassland
- 9. Air sacs in the lungs, does the exchange of oxygen and carbon dioxide take place
- 10. A region of the brain that adjusts our breathing rate, the level of sugar in our blood, and keeps your body cool by letting it sweat
- 12. A class of fish with bones
- 16. A type of plant would you choose if you do not like to re-plant each year
- 18. A term that is associated with rainforest trees
- 20. an African Grassland
- 23. A body system that regulates hormones