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There was a green house. Ins...

There was a green house. Inside the green house there was a white house. Inside the white house there was a red house. Inside the red house there were lots of babies. What is it?

Correct answers: 62

The first user who solved this task is Ivana Brkan Cakić.

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A doctor told his patient afte...

A doctor told his patient after reviewing his x-rays he needed surgery costing $5000.
The patient said he only had $500.00 and what could be done.
The doctor said, "Well, I can always touch-up your x-rays."

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Methanogens

In 1977, the identification of methanogens, a form of life dating back some 3.5 billion years, was reported by scientists at the University and Illinois. Microbiologist Carl R. Woese had long studied the evolutionary track of DNA and RNA. In 1976, he was approached by his colleague Ralph Wolfe, who presented a group of methane producing organisms. Woese studied their RNA and recognized their lack of the entire oligonucleotide sequences. He discovered the organisms were so different from bacteria, they deserved their own branch of the family tree as the third domain of life, Archaea. Methanogens are found in oxygen-deficient environments, and mostly obtain their energy by reducing carbon dioxide and oxidizing hydrogen, with the production of methane.

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