Select all that apply.
the kidneys
filter waste from the blood,
reabsorb nutrients from the blood,
ensure the body is hydrated,
oxygenate the blood

Two activities mouth is in the digestive process

Aperson who doesn't have enough calcium in his or her diet is at risk for developing bones that are weak and break easily. this condition is known as  a.  osteoporosis.    b.  crohn's disease.    c.  celiac disease.    d.  hemophilia.

How do healthier citizens save the government money?