An Exploration of Different Theories of Evolution Essay -- Life Evolut

An Exploration of Different Theories of ontogenesis Where did we come from? It is a point that has haunted the entire history of humanity. Thousands of years ago, our ancestors sought to answer the heading with myths. Today, we are still struggling with the same questiononly today we seek to answer this mystery with science. Given various observations, it seems plausible that all animation arose from a few very simple organisms millions of years ago. Observations of flavor will raise two important (though almost paradoxical) questions Why are there so many different kinds of life? And why do there appear to be some over-riding similarities among organisms? The diversity of life is apparent in the vast fall of different species of plants and animals that exist on earth. By the mid 20th Century, there was an estimated 1 to 2 million different types of organisms. (12) Now, however, the go is even higher and is expect to continue to climb as more discoveries are made. Th at there are prevailing similarities among organisms is equally apparent. (13) All organisms wasting disease the same biochemical mechanisms to function. For example, all organisms manipulation DNA and many proteins that make up cells and serve as enzymes are the same across species. (12) Also, organisms that are supposed to be closely related slant to share certain characteristics. For example, the swot in a whales front flipper are arranged in much the same way as the study in human beings arms and both whales and humans are mammals and therefore more closely related than say humans and squid. (12) Evolution - as define as - the theory that the various types of animals and plants have their origin in other preexisting types and that the distinguishable diff... ...) The Limits of Darwinism , by David Berlinski http//bostonreview.mit.edu/bostonreview/br22.1/berlinski.html18) The RNA World , by Brig Klyce http//www.panspermia.org/rnaworld.htm19) Viruses Imported familial Soft ware , by Brig Klyce http//www/panspermia.org/virus.htm20) Encyclopedia Britannica Online http//www.panspermia.org/virus.htm21) http//search.eb.com/cgi-bin/dictionary?va=Evolution , Encyclopedia Britannica Online http//www/panspermia.org/virus.htm22) Article from US Environmental Protection Agency published in May 1998http//www.epa.gov/radiation/ionize.htm23) Mutation Causes and Repair , by McAllister slide presentation http//www.uta.edu/biology/mcallister/3315/17_HTML%20Folder/tsld001.htm24) Duke Study Finds New Causes of Mutation , by Marko Djuranovic http//www.netlink.de/gen/Zeitung/2001/010131.html An Exploration of Different Theories of Evolution Essay -- Life EvolutAn Exploration of Different Theories of Evolution Where did we come from? It is a question that has haunted the entire history of humanity. Thousands of years ago, our ancestors sought to answer the question with myths. Today, we are still struggling with the same questiononly today we seek to a nswer this mystery with science. Given various observations, it seems plausible that all life arose from a few very simple organisms millions of years ago. Observations of life will raise two important (though almost paradoxical) questions Why are there so many different kinds of life? And why do there appear to be some over-riding similarities among organisms? The diversity of life is apparent in the vast number of different species of plants and animals that exist on earth. By the mid 20th Century, there was an estimated 1 to 2 million different types of organisms. (12) Now, however, the number is even higher and is expect to continue to climb as more discoveries are made. That there are prevailing similarities among organisms is equally apparent. (13) All organisms use the same biochemical mechanisms to function. For example, all organisms use DNA and many proteins that make up cells and serve as enzymes are the same across species. (12) Also, organisms that are supposed to be closely related carry to share certain characteristics. For example, the bones in a whales front flipper are arranged in much the same way as the bones in human beings arms and both whales and humans are mammals and therefore more closely related than say humans and squid. (12) Evolution - as specify as - the theory that the various types of animals and plants have their origin in other preexisting types and that the distinguishable diff... ...) The Limits of Darwinism , by David Berlinski http//bostonreview.mit.edu/bostonreview/br22.1/berlinski.html18) The RNA World , by Brig Klyce http//www.panspermia.org/rnaworld.htm19) Viruses Imported genic Software , by Brig Klyce http//www/panspermia.org/virus.htm20) Encyclopedia Britannica Online http//www.panspermia.org/virus.htm21) http//search.eb.com/cgi-bin/dictionary?va=Evolution , Encyclopedia Britannica Online http//www/panspermia.org/virus.htm22) Article from US Environmental Protection Agency published in May 1998http//www.e pa.gov/radiation/ionize.htm23) Mutation Causes and Repair , by McAllister slide presentation http//www.uta.edu/biology/mcallister/3315/17_HTML%20Folder/tsld001.htm24) Duke Study Finds New Causes of Mutation , by Marko Djuranovic http//www.netlink.de/gen/Zeitung/2001/010131.html