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Humanity

Humanity Questions and Answers

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View your most frequently asked questions on humanity. Our editors do the research to provide accurate answers to submitted questions.

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What's the most common blood type?
What are the names of all the layers of skin and what are some of their properties?
Can you please tell me how much the human skin of a person's body alone weighs?
Do men and women have the same number of ribs?
How many quarts of air does a human being breathe every minute?
What is the average length of a hospital stay for a woman giving birth to a baby?
What is the ratio of males to females at birth in the U.S.?
What do the two numbers in a blood pressure reading mean?
My wife and I have argued this, and I've had trouble finding the answer. Which sex carries the genes to determine the sex of the offspring... basically, which parent decides the gender of the baby?
What causes gray hairs to sprout as a person grows older?
What is the drug they use in this country for lethal injections?

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