Monthly Archives: April 2014
169.IS THERE ANY GROUP OF PEOPLE WHO ARE GIANTS?
We all know that there are Pygmies. But is there any group of people taller than the average, as the Pygmies are shorter?
The answer is no. Height varies throughout the world. Some peoples, such as the Eskimos, Lapps, and certain Indian Tribes in South America are short. Some of the native tribes of eastern Africa have an average height of 1.8 meters or more. But they are not giants.
168.HOW DOES THE BODY MAKE BLOOD CELLS?
In the body of an adult human being, there are about six litres of blood. Floating about in this liquid there are approximately 25 billion blood cells!
It is almost impossible for us to imagine such a tremendous quantity, but this might give you an idea. Each blood cell is so tiny that it can only be seen under a microscope. If you could make a string of these microscopic cells, that string would go four times around the earth!
167.HOW DO OUR KIDNEYS FUNCTION?
The kidneys, two flat, bean-shaped, solid organs, are among the most important in our body. About 10 centimeters, they lie on each side of the spine near the waistline.
The kidneys remove unwanted substances from the body. It is just as important for the body to get rid of what it doesn’t need and can’t use as it is for it to take in what it needs. They also regulate the amount of water and other substances in the blood.
