Earth Sciences 1086F/G Chapter Notes - Chapter 19: Electric Spark, Natural Selection, Cell Nucleus
16 Apr 2015
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1. 0 introduction: list of potential habitats in the solar system now includes at least four other sites: two satellites of jupiter (europa and ganymede), and two of saturn (enceladus and titan) To understand the definition of life and appreciate how restrictive it is. To define the minimum conditions in which life could develop, and then to isolate those particular sites that have potential. 1. 2 building carbon creatures: all earth life is carbon based, carbon atoms can bond to other atoms to form long, complex, stable chains that are capable of extracting, storing and utilizing energy. Information stored in dna changes throughout generations as the environment changes. If it didn"t, species would not be able to adapt to environmental changes, and would drive life forms to extinction. That contain genetic information sufficient to reproduce. That possess the abilities to undergo metabolism. That adapt (through natural selection) to their environment in successive generations.
