Answer:
The earliest known case of infection with HIV-1 in a human was detected in a blood sample collected in 1959 from a man in Kinshasa, Democratic Republic of the Congo. (How he became infected is not known.)
Explanation:
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It is important to evaluate an exercise program before you participate because you don't want to severely injure yourself or push yourself beyond your exercise ability.
Answer: Exhaled air consists of 78 percent nitrogen, 16 percent oxygen, 4 percent carbon dioxide and potentially thousands of other compounds.
Explanation: Does this help???
Answer:
It's true.
Explanation:
Calorie-restricted diets reduce inflammation, delay the onset of age-related diseases, and extend lifespan, a new study reports.
