Bad grade because there are no citations Needs citations,overall very interesting
INTRODUCTION TO EVOLUTION
What is Evolution? Evolution is the process by which all living things
have developed from primitive organisms through changes occurring over
billions of years, a process that includes all animals and plants. Exactly how
evolution occurs is still a matter of debate, but there are many different
theories and that it occurs is a scientific fact. Biologists agree that all living
things come through a long history of changes shaped by physical and
chemical processes that are still taking place. It is possible that all organisms
can be traced back to the origin of Life from one celled organims.
The most direct proof of evolution is the science of Paleontology, or
the study of life in the past through fossil remains or impressions, usually in
rock. Changes occur in living organisms that serve to increase their
adaptability, for survival and reproduction, in changing environments.
Evolution apparently has no built-in direction purpose. A given kind of
organism may evolve only when it occurs in a variety of forms differing in
hereditary traits, that are passed from parent to offspring. By chance, some
varieties prove to be ill adapted to their current environment and thus
disappear, whereas others prove to be adaptive, and their numbers increase.
The elimination of the unfit, or the 'survival of the fittest,' is known as
Natural Selection because it is nature that discards or favors a
articular being. Evolution takes place only when natural selection
operates on a
population of organisms containing diverse inheritable forms.
Pierre Louis Moreau de Maupertuis (1698-1759) was the first
propose a general theory of evolution. He said that hereditary material,
consisting of particles, was transmitted from parents to offspring. His
of the part played...