Evolution | One Shot | Class 12 | BIOLOGY | By AT Sir

About The Topic :-
Evolution | One Shot | Class 12 | BIOLOGY | By AT Sir

In this sessions, Anurag Sir will discuss the chapter 6 Evolution . Evolution is the process by which living organisms change over time, resulting in changes in their genetic material and observable traits:
Explanation
Evolution occurs through genetic changes that correspond to changes in the organisms' observable traits. These changes can result in altered genes, novel traits, and new species.
Mechanisms
Evolution can occur through mechanisms including:
Natural selection: A process that increases the frequency of advantageous alleles in a population
Sexual selection: A mechanism of evolution
Genetic drift: A mechanism of evolution
Study of evolution
The study of evolution is called evolutionary biology.
Examples
The skeletons of turtles, horses, humans, birds, and bats are strikingly similar, despite their different ways of life. This is because these organisms share inherited similarities in their bone structure.
Human evolution
Humans first evolved in Africa, and much of human evolution occurred on that continent. Early humans migrated out of Africa into Asia between 2 million and 1.8 million years ago. They entered Europe somewhat later, between 1.5 million and 1 million years. If you are Class 12 aspirant, this video is for you.

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