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Illicit drug use costs the United States approximately $181 billion every year.

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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 senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

(a) Initial mtDNA results suggested modern humans and Neadertals were equally distantly related to D (a) Initial mtDNA results suggested modern humans and Neadertals were equally distantly related to D
Mental Health in the U.S: Survery Results Mental Health in the U.S: Survery Results
The immune response results from activation of the humoral and cell-mediated immune systems The immune response results from activation of the humoral and cell-mediated immune systems
Results of a cross involving two genes located on the same chromosome Results of a cross involving two genes located on the same chromosome
Results of a genome-wide association study (GWAS) to detect SNPs Results of a genome-wide association study (GWAS) to detect SNPs
Results and interpretation of a mixed copolymer Results and interpretation of a mixed copolymer
Video: Types of Burns

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