Microevolution Essay Example | Topics and Well Written Essays - 750 words

Microevolution - Essay Example Competition in the wild is the ultimate solution to survival. Animals with unique features survive while those with unwanted features die. Iguanas that could not survive the evolution process had no option but to die. Iguanas had to attach themselves to their parents to protection until they were mature. They adapted to feeding cacti and flowers in the wild. Competition among organisms in the same environment eliminates the weaker generation from the society. Darwin noted that the tortoises in Galapagos Island were distinctive in their particular manner. They were very distinct, and individuals could quickly tell the island of origin. There is a close relationship between the land iguanas and the finches.That sets in another theory whose postulation supports why land iguanas are dominant in Laguna de Manialtepec, South Mexico (Darwin&Quammen, 12). The choice of food eaten by organisms and the time food takes to reach the gastrointestinal tract of the iguanas is vital in the evolution of the animal. Natural foods are broken down for energy, nitrogen, calcium among other crucial minerals. The system of the iguana's processes high-quality foods. According to Darwin, not all organisms have equal chances in the fight for survival (Darwin&Quammen, 23). The plants that have adapted to the environment are healthy and have a better chance of surviving. The fittest animals survive harsh conditions. Land iguanas reproduce to their full potential and adapt to the conditions of Laguna de Manialtepec.