Evolution And Evolution Of Natural Selection

1826 WordsOct 23, 20148 Pages
i. Evolution refers to change over time due to natural selection as organisms adapt and diverge to produce multiple descendant species (Huxley L., Walter M., 2005, p. 698). Two pillars which form the basis of all current knowledge of evolution originate from the historical record of evolutionary change, fossil record and the study of the process of evolutionary change, specifically the effect of natural selection. Recent developments in science, including molecular and developmental biology, have greatly contributed to the understanding of biological diversity and how evolution has changed multiple species, particularly the human species (Losos J., 2014, pp. 3). ii. The concept of natural selection was partially introduced by naturalist Charles Darwin in 1859 when he proposed and provided scientific evidence to describe evolution as the idea that all species have evolved over time from common ancestors through the process of natural selection. To survive in a particular environment, Darwin’s theory proposes that natural selection is the mechanism where organisms must possess attributes that increase their chance of survival in that environment (Chidrawi G., Robson M., Hollis S., 2010, pp 114). Therefore, there will be a tendency for these attributes to be perpetuated and other less appropriate attributes to be lost from the population over successive generations (Huxley L., Walter M., 2005, pp. 698, 704). iii. Fossils are the remains of dead plants and animals that have not
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