Direction: Read the passage and answer the following questions.

“Lazybones”? There is no such thing. We may think that our bones are inert, dead, the body's structural steel. Actually, they are among the busiest living organs in the body. They are thriving manufacturing plants which make red and white blood cells 24 hours a day. Every minute about 180 million red cells die. Your bones must replace them with healthy young cells, or you face anaemic death. It takes six to eight weeks for the marrow to restore the red blood cells after a pint of blood has been removed.

Bones have other major responsibilities: they produce the white blood cells which fight off infection, and they act as one of the store-houses for reserve nourishment. In their marrow they store fats and proteins for times of need. And they contain nearly all the body's vital calcium and phosphorus. Calcium is necessary for the clotting of blood, the beating of the heart, the contraction of muscles and the functioning of the nervous system. By an intricate self-regulating system, the calcium deposited last week is withdrawn.

Direction: Read the passage and answer the following questions.

“Lazybones”? There is no such thing. We may think that our bones are inert, dead, the body's structural steel. Actually, they are among the busiest living organs in the body. They are thriving manufacturing plants which make red and white blood cells 24 hours a day. Every minute about 180 million red cells die. Your bones must replace them with healthy young cells, or you face anaemic death. It takes six to eight weeks for the marrow to restore the red blood cells after a pint of blood has been removed.

Bones have other major responsibilities: they produce the white blood cells which fight off infection, and they act as one of the store-houses for reserve nourishment. In their marrow they store fats and proteins for times of need. And they contain nearly all the body's vital calcium and phosphorus. Calcium is necessary for the clotting of blood, the beating of the heart, the contraction of muscles and the functioning of the nervous system. By an intricate self-regulating system, the calcium deposited last week is withdrawn.

Direction: Read the passage and answer the following questions.

“Lazybones”? There is no such thing. We may think that our bones are inert, dead, the body's structural steel. Actually, they are among the busiest living organs in the body. They are thriving manufacturing plants which make red and white blood cells 24 hours a day. Every minute about 180 million red cells die. Your bones must replace them with healthy young cells, or you face anaemic death. It takes six to eight weeks for the marrow to restore the red blood cells after a pint of blood has been removed.

Bones have other major responsibilities: they produce the white blood cells which fight off infection, and they act as one of the store-houses for reserve nourishment. In their marrow they store fats and proteins for times of need. And they contain nearly all the body's vital calcium and phosphorus. Calcium is necessary for the clotting of blood, the beating of the heart, the contraction of muscles and the functioning of the nervous system. By an intricate self-regulating system, the calcium deposited last week is withdrawn.

Direction: Read the passage and answer the following questions.

“Lazybones”? There is no such thing. We may think that our bones are inert, dead, the body's structural steel. Actually, they are among the busiest living organs in the body. They are thriving manufacturing plants which make red and white blood cells 24 hours a day. Every minute about 180 million red cells die. Your bones must replace them with healthy young cells, or you face anaemic death. It takes six to eight weeks for the marrow to restore the red blood cells after a pint of blood has been removed.

Bones have other major responsibilities: they produce the white blood cells which fight off infection, and they act as one of the store-houses for reserve nourishment. In their marrow they store fats and proteins for times of need. And they contain nearly all the body's vital calcium and phosphorus. Calcium is necessary for the clotting of blood, the beating of the heart, the contraction of muscles and the functioning of the nervous system. By an intricate self-regulating system, the calcium deposited last week is withdrawn.

Direction: Read the passage and answer the following questions.

“Lazybones”? There is no such thing. We may think that our bones are inert, dead, the body's structural steel. Actually, they are among the busiest living organs in the body. They are thriving manufacturing plants which make red and white blood cells 24 hours a day. Every minute about 180 million red cells die. Your bones must replace them with healthy young cells, or you face anaemic death. It takes six to eight weeks for the marrow to restore the red blood cells after a pint of blood has been removed.

Bones have other major responsibilities: they produce the white blood cells which fight off infection, and they act as one of the store-houses for reserve nourishment. In their marrow they store fats and proteins for times of need. And they contain nearly all the body's vital calcium and phosphorus. Calcium is necessary for the clotting of blood, the beating of the heart, the contraction of muscles and the functioning of the nervous system. By an intricate self-regulating system, the calcium deposited last week is withdrawn.

Direction: Read the passage and answer the following questions.

“Lazybones”? There is no such thing. We may think that our bones are inert, dead, the body's structural steel. Actually, they are among the busiest living organs in the body. They are thriving manufacturing plants which make red and white blood cells 24 hours a day. Every minute about 180 million red cells die. Your bones must replace them with healthy young cells, or you face anaemic death. It takes six to eight weeks for the marrow to restore the red blood cells after a pint of blood has been removed.

Bones have other major responsibilities: they produce the white blood cells which fight off infection, and they act as one of the store-houses for reserve nourishment. In their marrow they store fats and proteins for times of need. And they contain nearly all the body's vital calcium and phosphorus. Calcium is necessary for the clotting of blood, the beating of the heart, the contraction of muscles and the functioning of the nervous system. By an intricate self-regulating system, the calcium deposited last week is withdrawn.

Direction: Read the passage and answer the following questions.

“Lazybones”? There is no such thing. We may think that our bones are inert, dead, the body's structural steel. Actually, they are among the busiest living organs in the body. They are thriving manufacturing plants which make red and white blood cells 24 hours a day. Every minute about 180 million red cells die. Your bones must replace them with healthy young cells, or you face anaemic death. It takes six to eight weeks for the marrow to restore the red blood cells after a pint of blood has been removed.

Bones have other major responsibilities: they produce the white blood cells which fight off infection, and they act as one of the store-houses for reserve nourishment. In their marrow they store fats and proteins for times of need. And they contain nearly all the body's vital calcium and phosphorus. Calcium is necessary for the clotting of blood, the beating of the heart, the contraction of muscles and the functioning of the nervous system. By an intricate self-regulating system, the calcium deposited last week is withdrawn.