Did you know?
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
Did you know?
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
The path of sound waves through the outer, middle, and inner ear.
The respiratory system: nasal cavity, pharynx, larynx, trachea, bronchus, and lung with expanded vie
Components of a computer system.
The mesotelencephalic dopamine system in the human brain, consisting of the nigrostriatal pathway ...
How to solve a linear system by the substitution method
Development of the Digestive System "تطوير الجهاز الهضمي"