Homeostasis is the ability of the body to regulate its internal environment within limits that allow it to survive
The ends of the femur are covered in a smooth, slippery substance called articular cartilage. This cartilage protects and cushions the bone when you bend and straighten your knee. The normal anatomy of the knee.
Meteor- creates crators
nuclear wafare- no more life
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For some reason I think I'm one for being depressed, is there anyone like me?
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