Question

Why do people compete over food, space and other things during the old times. Give evidence.​

Answer 1

Answer:

Competition is an interaction between organisms or species in which both the organisms or species are harmed. Limited supply of at least one resource (such as food, water, and territory) used by both can be a factor.[1] Competition both within and between species is an important topic in ecology, especially community ecology. Competition is one of many interacting biotic and abiotic factors that affect community structure. Competition among members of the same species is known as intraspecific competition, while competition between individuals of different species is known as interspecific competition. Competition is not always straightforward, and can occur in both a direct and indirect fashion.[2]

According to the competitive exclusion principle, species less suited to compete for resources should either adapt or die out, although competitive exclusion is rarely found in natural ecosystems. According to evolutionary theory, this competition within and between species for resources is important in natural selection. However, competition may play less of a role than expansion among larger clades;[3] this is termed the 'Room to Roam' hypothesis.[2]

Explanation:

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Answer 2

People compete over food, space, and other things during the old times because of a decrease in resource availability.

• Resource availability in simple terms means availability of food, space, mate, etc. fluctuated during ancient times due to the increase in population.
• When the population increases, the quantity of space and food decreases.
• Resource availability and ecological competition are necessary for evolutionary adaptation or in other words survival of the fittest.
• The competition did not constrain among humans but was also observed in animals.
• An example is a Dietary competition between "Euprimates" which are Adapids and Omomypids.