Biology 1002B Lecture Notes - Lecture 2: Teratology, Alanine, Reducing Atmosphere
9 Sep 2013
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Display order: arranged in a highly ordered manner, cell: fundamental unit of life. Harness & utilize energy: acquire energy from the environment and use it to maintain state. Reproduce: have the ability to make more of their own kind. Respond to stimuli: can make adjustments to their structure, function and behavior in response to changes to external environment. Exhibit homeostasis: regulate internal environment so that conditions stay relatively constant. Increase their size by increasing the size/number of cells. Evolve: populations change over generations to become better adapted to the environment. *early forms of life formed in an environment lacking oxygen. 3 main domains of life: bacteria, archea, eukarya. Stromatolites (3. 5 bya) structures that are produces by microbial activities (fossils: layered rock that is formed when microorganisms bind articles of sediment together, forming thin sheets, formed by cyanobacteria modern posses a sophisticated metabolism.
