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Archaebacteria is an organism that converts the carbon dioxode to methane by a process called methanogenesis. In this process H2 is the donor of reducing equivalents and Co2 is the electron acceptor. In archabacteria,the electron transport chain can be run in reverse. In this direction, the energy in the proton […]

Chapter 5 is all about examining your own beliefs. This is something that can be difficult to do, because our beliefs are such a large part of who we are. However, examining your beliefs can be a very interesting and rewarding experience. It may strengthen what you already believe, it […]

Green swordtails are sexually dimorphic: males have a long, swordlike projection from their tails, and females have rounded tails. In choice experiments, female swordtail greatly prefer males with elongated tails to males with tails of normal length.An experimenter decides to perform an experiment on a closely related species, a molly,in […]

Cotton and Potatoes. A cotton fiber consists almost exclusively of cellulose, whereas a potato tuber contains mainly starch. Cotton is a tough, fibrous, and virtually insoluble in water. The starch present in a potato tuber, on the other hand, is neither tough not fibrous and can be dispersed in hot […]