
What is microevolution?
Answer
446.1k+ views
Hint: Evolution is the process in which the characteristics of the species that have been in them for over regeneration tend to change through the process of natural selection for the better adaptation in new environmental conditions.
Complete answer:
The evolution of the process of occurrence of a change in the characteristics of species over time. While the process evolution when occurs only for a short period of time then it will be called the microevolution. In this process, various characteristics will be observed in a particular population of species. This change will occur due to the occurrence of mutation, genetic drift, genetic variation, genetic recombination, etc.
The evolution is of two types:
1) Convergent evolution having adapted to similar environments or ecological niches, the organisms are independently evolved similar traits. In this type of evolution, the organisms are called monophyletic because they are not closely related to each other. In this process, the similar traits or structures are developed among the different groups of organisms and thus develop the analogous organs. This process takes place due to the presence of the similar environmental conditions.
Example: Wings of insects, birds, and bats all are similar to each other’s structures.
2) When the species show similar characters but are closely related to the ancestors then it termed parallel evolution. In this process, the two species will maintain the similarity between the two species and undergo evolution independently. It generally occurs between unrelated species that do not exhibit the same or similar niches in a given habitat.
Note:
The term evolution was derived from the Latin word ‘evolvere’, meaning to unroll or to open. The process of evolution was first discovered by Charles Darwin in his book Origin of Species in the nineteenth century. The evolution theory was studied and given by various naturalists.
Complete answer:
The evolution of the process of occurrence of a change in the characteristics of species over time. While the process evolution when occurs only for a short period of time then it will be called the microevolution. In this process, various characteristics will be observed in a particular population of species. This change will occur due to the occurrence of mutation, genetic drift, genetic variation, genetic recombination, etc.
The evolution is of two types:
1) Convergent evolution having adapted to similar environments or ecological niches, the organisms are independently evolved similar traits. In this type of evolution, the organisms are called monophyletic because they are not closely related to each other. In this process, the similar traits or structures are developed among the different groups of organisms and thus develop the analogous organs. This process takes place due to the presence of the similar environmental conditions.
Example: Wings of insects, birds, and bats all are similar to each other’s structures.
2) When the species show similar characters but are closely related to the ancestors then it termed parallel evolution. In this process, the two species will maintain the similarity between the two species and undergo evolution independently. It generally occurs between unrelated species that do not exhibit the same or similar niches in a given habitat.
Note:
The term evolution was derived from the Latin word ‘evolvere’, meaning to unroll or to open. The process of evolution was first discovered by Charles Darwin in his book Origin of Species in the nineteenth century. The evolution theory was studied and given by various naturalists.
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