Aprocedure done under controlled conditions to test a hypothesis is an inquiry true or false

false because your not questioning about it your doing it

Explanation:

please mark this answer as brainlest

yes i have all the correct answers

1. c 6. b. 11. c

2. a 7. d. 12. d

3. c 8. b. 13. c

4. d 9. c. 14. d

5. c 10. d. 15. a

16. d. 21. a

17. d.

18. a. 22-30 you must do on

19. d. your own

20. d.

answer; polycythemia is the correct answer;