BIOL 2040 Chapter Notes - Chapter 1: Archaea
Document Summary
~experimentation- disciplined& controlled way of asking/answering questions in an unbiased manner. ~darwin first noticed natural selection and wrote about it in the book on the origin of species in 1859. ~theory-when a number of related hypotheses are accepted. ~2- ability to change in response to the environment. ~first law of thermodynamics- energy can neither be created nor destroyed. ~second law of thermodynamics- degree of disorder tends to increase. ~life emerged roughly 4 billion years ago, organisms are mostly oxygen, carbon, and hydrogen. ~cells vary in size, contain a blueprint of information in molecular form. ~cells require a stable archive of information that helps determine physical attributes. ~cells must reproduce, copy their archive of information rapidly and accurately. ~cells release waste products, along with membranes to divide the cell into discrete compartments. ~prokaryotes-no nucleus, first cells to emerge, bacteria, archaea some coexist with humans(stomach), others cause disease.
