The introduction of population thinking to biology represent

The introduction of population thinking to biology represented an important advance contributed by Darwin and Wallace. It replaced flawed evolutionary theories such as Lamarck’s inheritance of acquired traits. Using the predator-prey relationship between cheetahs and gazelles as an example, provide a descriptive paragraph that might have been offered before population thinking, and a descriptive paragraph that does use population thinking.

Solution

Population thinking reveals the extinction, speciation, and adaptation of individuals regulate the development of population. According Darwin and Wallace who are the force theorists, the predator-prey relationship between cheetahs and gazelles can describe on the basis of theory. The theory which reveals the natural selection that relies on environmental forces. The environment forces in the predator prey relationship are selection for survival; how prey can survive by predator and how predator survives by having its food.

Cheetahs need to adopt to prey the gazelles with efficient. There are few chances to kill a gazelle. Cheetahs are adopted for running fast, clear vision and agility. They had evolved claws for controlling their directions and a flat surfaced tail to make their balance. They had pointed pad in their legs which provides a sudden decent startup or sprint. The gazelles are adopted in the term of medium size, long limbs and skin color. Size helps to provide less available surface for capturing, turning, hiding and living in the environment. Long limbs increase the speed of gazelles which is up to 40 miles/ hour. And the skin color helps to camouflage into the surroundings. The all adaptations get only by having selections of high developed organisms. The selected individuals cheetahs and gazelles will increase their generations. The less developed cheetah get died of food deprivation and less developed gazelles will die by prey.

Before the population thinking, there is the rule that use and non use of organs. The organs which need to develop in predator-prey relationship are having tendency of development if there is relationship occurred in between two organisms only. The organs which are described above, according to the theory related to before population thinking, can develop only by uses of them and then animals can carry the character to next generations.