EAMCET Zoology: February 2010

Saturday, February 6, 2010

Junior Inter Papers

The human body is made up of around 100 trillion cells.
The human brain contains 100 billion neurons (nerve cells) — about as many stars are in the Milky Way Galaxy — and it can generate enough electricity to power a lightbulb for 24 hours.
The heart pumps 100,000 times per day, sending 8 to 10 pints of blood through about 60,000 miles (96,560 kilometers) of blood vessels.
We breathe an average of 700 million breaths over the course of an average lifetime of 70 years.
A newborn baby’s skeleton has 300 parts. Gradually, these fuse together during childhood to form the 206 bones of an adult. By the time you are 25, this process is complete.
We change our skin about every 4 weeks. Every minute, we shed as many as 30,000 dead skin cells.
The human head has around 100,000 hairs. We lose 40 to 100 every day. Each follicle grows around 20 times in a lifetime.
The combined growth of hair on your head and body totals 100 inches (254 centimeters) a day, making an incredible 7 miles (11 kilometers) of hair a year.

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Junior Inter Papers

The human body is made up of around 100 trillion cells.
The human brain contains 100 billion neurons (nerve cells) — about as many stars are in the Milky Way Galaxy — and it can generate enough electricity to power a lightbulb for 24 hours.
The heart pumps 100,000 times per day, sending 8 to 10 pints of blood through about 60,000 miles (96,560 kilometers) of blood vessels.
We breathe an average of 700 million breaths over the course of an average lifetime of 70 years.
A newborn baby’s skeleton has 300 parts. Gradually, these fuse together during childhood to form the 206 bones of an adult. By the time you are 25, this process is complete.
We change our skin about every 4 weeks. Every minute, we shed as many as 30,000 dead skin cells.
The human head has around 100,000 hairs. We lose 40 to 100 every day. Each follicle grows around 20 times in a lifetime.
The combined growth of hair on your head and body totals 100 inches (254 centimeters) a day, making an incredible 7 miles (11 kilometers) of hair a year.

Post your comments. To learn how to post comments click here.