Biology Notes - Myles Becker Bio Lecture 9/10/07 Eleven...

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Myles Becker Bio Lecture 9/10/07 Eleven Themes that Unify Biology The Cell – Cells are every organism’s basic units of structure and function. The two main types of cells are prokaryotic cells (in bacteria and archaea) and eukaryotic cells (in protists, plants, fungi, and animals). Heritable Information – The continuity of life depends on the inheritance of biological information in the form of DNA molecules. This genetic information is encoded in the nucleotide sequences of the DNA. Emergent Properties of Biological Systems – The living world has a hierarchical organization, extending from molecules to the biosphere. With each step upward in level, system properties emerge as a result of interactions among components at the lower levels. Regulation – Feedback mechanisms regulate biological systems. In some cases, the regulation maintains a relatively steady state for internal factors such as a body temperature. Interaction with the Environment
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This note was uploaded on 04/17/2008 for the course HIST, GOVT Unknown taught by Professor Unknown during the Fall '06 term at North Texas.

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Biology Notes - Myles Becker Bio Lecture 9/10/07 Eleven...

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