This topic contains a solution. Click here to go to the answer
|
|
Did you know?
Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
Did you know?
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
People about to have surgery must tell their health care providers about all supplements they take.
Did you know?
About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.