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Author Question: The oldest rocks on the Moon were formed about how many years ago? a. 1.5 million b. 4.4 million ... (Read 120 times) |
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
A blood smear. The smear reveals representative cells from each formed element group: red blood cell
The basalt below the hominins is dated to 1.8 million years ago, and the geomagnetic polarity of the