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Explore how photosynthesis works by helping the process along in this game.


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Younger Looking Skin In Seconds. Try LifeCell's Dermatologist Tested Formula for 30 Days and Say Goodbye to Wrinkles, Fine Lines and Sagging Skin.


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About The Immortal Life of Henrietta Lacks. Her name was Henrietta Lacks, but scientists know her as HeLa. She was a poor black tobacco farmer whose cells—taken without her knowledge in 1951—became one of the most important tools in medicine, vital for developing the polio vaccine, cloning, gene mapping, in vitro fertilization, and more.


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Peter, Paul and Mary: biography, albums, songbooks, videos and tour information


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Henrietta Lacks (born Loretta Pleasant; August 1, 1920 – October 4, 1951) was an African-American woman whose cancer cells are the source of the HeLa cell line, the first immortalized cell line and one of the most important cell lines in medical research.


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Welcome to the home page for family of Henrietta Lacks. For those who don't know who Henrietta Lacks was, the new book The Immortal Life of Henrietta Lacks being published February 2nd tells her story.


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Definitions. It is a challenge for scientists and philosophers to define life. This is partially because life is a process, not a substance. Any definition must be general enough to both encompass all known life and any unknown life that may be different from life on Earth.


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This lesson will focus on the major organelles that are found inside of eukaryotic cells. It will discuss their structures and functions. The...


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As America's most fearless purveyor of "truthiness," Stephen Colbert shines a light on ego-driven punditry, moral hypocrisy and government incompetence, raising the bar for political satire.


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Somatic cells are all cells in the body except germ cells, which are egg and sperm. Learn more about examples of these cells and how they differ...