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Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

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There are approximately 3 million unintended pregnancies in the United States each year.

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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Continental drift Continental drift
Cell-wall structure of Gram-positive and Gram-negative bacteria. Cell-wall structure of Gram-positive and Gram-negative bacteria.
Gram-positive and Gram-negative bacteria. Gram-positive and Gram-negative bacteria.
Gram negative flowchart Gram negative flowchart
ABO and Rh grouping using gelatin centrifugation. The blood sample above is AB negative as indicated ... ABO and Rh grouping using gelatin centrifugation. The blood sample above is AB negative as indicated ...
Positive and Negative Reinforcement Positive and Negative Reinforcement
Video: Miller's reaction chamber experiment Animation

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