Across
- 6. main functions of this system are for protection and thermal regulation
- 7. this system supports the bones in movement
- 8. basic unit of life
- 10. spleen, tonsils, thymus
- 12. If females have egg cell, what cell do males have in their reproductive system?
- 13. Science that studies form and structure of living things
Down
- 1. Branch of science that studies how body parts function
- 2. Endocrine system secretes this chemical inside the body to maintain homeostasis
- 3. esophagus, large intestine, stomach
- 4. this coordinates the function of all the systems in the body
- 5. system that pumps blood to and from the heart and supply oxygen to the body
- 9. group of cells that has the same function
- 11. this organ is part of the excretory system and helps produce urine