Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.
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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
Ten hallmarks of emotional health
The black-and-white colobus is an African colobine.
How to calculate present value (Question 3)
Question About VSEPR Shape
A color-enhanced electron micrograph of circular plasmid molecules