/u/dragodon64's posts in /r/askscience

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What percentage of the calories that a human consumes is actually consumed by intestinal flora?

846 upvotes

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I know the Earth was formed 4.5-4.5 billion years ago, but what definitive event(s) actually took place then?

111 upvotes

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How can our bowels selectively pass either gaseous or solid/liquid contents?

30 upvotes

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How "wet" is the soil/rock a few meters below the ocean floor?

9 upvotes

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What is the objective definition of "disorder"?

8 upvotes

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Are extremophiles limited by Mg2+ for their DNA polymerases?

7 upvotes

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Are alcohol dehydrogenase genes in humans regulated more by glucose availability or alcohol abundance? Basically, is it primarily a resource acquisition or toxin elimination response?

5 upvotes

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Does drinking plenty of water actually enhance health?

3 upvotes

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What is the most calories/L (according to a human digestive system) drink you can make?

3 upvotes

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How did humans hunt before the invention of spears?

2 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
What percentage of the calories that a human consumes is actually consumed by intestinal flora?	846
I know the Earth was formed 4.5-4.5 billion years ago, but what definitive event(s) actually took place then?	111
How can our bowels selectively pass either gaseous or solid/liquid contents?	30
How "wet" is the soil/rock a few meters below the ocean floor?	9
What is the objective definition of "disorder"?	8
Are extremophiles limited by Mg2+ for their DNA polymerases?	7
Are alcohol dehydrogenase genes in humans regulated more by glucose availability or alcohol abundance? Basically, is it primarily a resource acquisition or toxin elimination response?	5
Does drinking plenty of water actually enhance health?	3
What is the most calories/L (according to a human digestive system) drink you can make?	3
How did humans hunt before the invention of spears?	2