NEET > Biology Class 12 > Evolution of Man
Evolution of Man Video Lecture - Biology Class 12 - NEET
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157 videos|398 docs|239 tests
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FAQs on Evolution of Man Video Lecture - Biology Class 12 - NEET
| 1. What is the theory of evolution? |  |
Ans. The theory of evolution is a scientific explanation for the diversity of life on Earth. It proposes that all living organisms share a common ancestry and have evolved over time through a process of natural selection.
| 2. How does natural selection work in the process of evolution? | |
Ans. Natural selection is the mechanism by which evolution occurs. It works by favoring individuals with advantageous traits that help them survive and reproduce in their environment. These individuals pass on their genes to the next generation, increasing the frequency of the advantageous traits in the population over time.
| 3. What are some examples of evidence for human evolution? | |
Ans. There are several lines of evidence that support the theory of human evolution. Fossil records show a progression of hominin species with increasing similarities to modern humans. Genetic studies have also revealed shared DNA sequences between humans and other primates, providing further evidence of a common ancestry.
| 4. How long has human evolution been occurring? | |
Ans. Human evolution has been occurring for millions of years. The earliest known hominin species, such as Ardipithecus and Australopithecus, appeared in Africa around 4-6 million years ago. The genus Homo, which includes modern humans, emerged around 2.8 million years ago.
| 5. Has human evolution stopped? | |
Ans. Human evolution is an ongoing process, but its pace has slowed down significantly in recent times due to various factors. With advancements in technology and medicine, there is less selective pressure for genetic adaptations. However, natural selection can still act on certain traits, and genetic changes can occur through mutations and genetic drift.
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Sushil Kumar |
Video Description: Evolution of Man for NEET 2023 is part of Biology Class 12 preparation.
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