Rheumatoid arthritis (RA) is an autoimmune disease that causes chronic inflammation of the joints. Autoimmune diseases are illnesses that occur when the body's tissues are mistakenly attacked by their own immune system.
What role did the bison or buffalo play in the culture of the Plains Indians? The bison were an important source of fur, food, and shelter for the Plains Indians. They used every part of the animals they killed. Bison were also an important part of their culture.
In the wild, bison eat grass, forbs (weeds), and browse (woody plants). They need about 24 pounds of dry matter a day, when grazing in the wild. Within the pens, the bison receive three pounds of nutritious cubes every other day. Have the students weigh out three pounds of dog food on a scale in a large paper sack.