Biology Human BodyOnline version Test your knowledge about the human body in this biology-themed game! by bauer david 1 The skin is the largest organ of the body. Yes No 2 The skeletal system provides support and protection. Yes No 3 The skin is the smallest organ of the body. Yes No 4 The human body has 206 bones. Yes No 5 The heart pumps air throughout the body. Yes No 6 The immune system protects the body from diseases. Yes No 7 The immune system attacks the body's own cells. Yes No 8 The lungs are responsible for breathing. Yes No 9 The brain controls all bodily functions. Yes No
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