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Did you know?
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
![Competition can be (a) direct, or (b) indirect interaction among individuals of the same or differen](https://biology-forums.com/gallery/47/medium_33_17_02_12_5_28_58_19442225.jpeg)
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