According to Darwin, the organic evolution is due to 1. Interspecific 2.intraspecific Ans is 1. Can anyone plz tell me why?

Question

Answer

According to Darwin, the organic evolution is due to interspecific competition.

Interspecific competition is a form of competition in which individuals of different species compete for the same resource in an ecosystem (while intraspecific competition involved organisms of the same species). In interspecific competition, the individuals of different species having similar requirements like food, air, water and shelter etc. compete with each other.

Darwin proposed the model of interspecific competition as the motive force of organic evolution. This model derived its explanatory power from the fact that the different organisms were familiar with the industrial and social completion of which many characteristic features could be grasped and compared with biological phenomena without formal demonstration or proof.

Thus, the correct answer is the option (B), 'Interspecific competition'.

Answer

1 interspecific

Answer

According to Darwin
interspecific competition is the most potent force for evolution
n
intraspecific competition is most acute ( for very less time ) type of competition

Answer

Introduction:
According to Charles Darwin, the organic evolution is primarily due to interspecific interactions rather than intraspecific interactions. In this response, we will explore the reasons behind this statement and provide a detailed explanation.

Interspecific Interactions:
Interspecific interactions refer to the interactions that occur between different species within an ecosystem. These interactions can take various forms such as competition, predation, mutualism, and symbiosis. Darwin argued that these interactions play a crucial role in driving organic evolution. Here's why:

1. Competition:
Competition between different species for limited resources, such as food, water, and territory, is a significant driving force behind evolution. Darwin observed that when two or more species compete for the same resources, individuals with advantageous traits have a higher chance of survival and reproductive success. Over time, this leads to the natural selection of individuals with these advantageous traits, resulting in the evolution of new species.

2. Predation:
Predation is another important interspecific interaction that influences evolution. Predators selectively prey upon individuals with certain characteristics, such as slower speed or less effective defenses. This predation pressure acts as a mechanism for natural selection, favoring traits that enhance survival and evasion from predators. Consequently, species evolve adaptations to better defend themselves or escape predation, leading to the diversification of species.

3. Mutualism and Symbiosis:
Mutualistic and symbiotic interactions between different species also contribute to organic evolution. Mutualism occurs when two species benefit from their interaction, while symbiosis is a long-term interaction between different species. These interactions can lead to coevolution, where species evolve in response to each other's presence. For example, the evolution of flowering plants and their pollinators is mutually beneficial, with both species coevolving traits that enhance their interaction and reproductive success.

Intraspecific Interactions:
Intraspecific interactions, on the other hand, refer to interactions that occur within a single species. These interactions include competition for resources, mate selection, and social hierarchies. While intraspecific interactions can influence the behavior and characteristics within a species, they do not drive the formation of new species or contribute significantly to organic evolution.

Conclusion:
In conclusion, Charles Darwin postulated that organic evolution is primarily driven by interspecific interactions rather than intraspecific interactions. Interspecific interactions, such as competition, predation, mutualism, and symbiosis, play a crucial role in shaping the traits and characteristics of species over time. These interactions result in natural selection, leading to the evolution of new species and the diversification of life on Earth.

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