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Across 4. carbon 7. exersize 8. speed 9. stretching 10. fitness 13. reaction 16. a fluid that has plasma and a whole lot of other nutrients and helps you survive 17. he kinds of food that a person eats 18. power 19. static

Down 1. muscles 2. what you drink and is in the ocean 3. using two or more body parts 5. being over the average weight limit 6. exercise that doesn't require oxygen like a 100M sprint 11. stamina 12. health 14. what you need breath 15. fit