Because each body system has a completely different function.
FDA: they jurisdiction over 80% of the food supply including seafood, dairy and produce.
USDA: they regulate meat, poultry and processed egg products.
Your mouth, nose, throat, sinuses and lungs are lined with mucus membranes. These membranes contain mucus glands that produce - surprise - mucus. Mucus-producing membranes line specific passages in your body, like the respiratory and digestive tracts, for protection and support.
The p wave represents atrial contraction
Answer:
The principle of reducing waste, reusing and recycling resources and products is often called the "3Rs." Reducing means choosing to use things with care to reduce the amount of waste generated. Reusing involves the repeated use of items or parts of items which still have usable aspects.