Across
- 6. variation in the amount of cytoplasm present in a cell and not necessarily shape or size
- 10. bird
- 11. a variation red blood cell color
- 14. variation in cell size (not shape)
- 16. every 30 minutes
- 17. horse
- 19. at bedtime
- 21. every day
- 22. twice daily
Down
- 1. cat
- 2. as needed
- 3. describes variation in cell shape
- 4. dog
- 5. every other day
- 7. cattle
- 8. goat
- 9. three times daily
- 12. lib freely as wanted
- 13. pig
- 15. sheep
- 16. every 4 hours
- 18. every hour
- 20. once daily
- 21. four times daily