Bone provides protection for soft tissues and internal organs, and antlers are true bones and are composed of calcium and phosphorous. Given these facts, what provides protection for soft tissues and internal organs among the following options:
- bacteria
 - Veins and arteries.
 - Fully cooking the oysters
 - layers of fat
 - calcium and phosphorous
 - water
 - peachleaf willow
 - the trachea


 

     calcium and phosphorous    