Natural Selection And Artificial Selection In Urdu Hindi | Class 12 Biology

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About This Video ........................

In This Video Lecture You Will Learn Basic Concept Of Natural selection
Natural selection occurs through an interaction between the environment and the
not heritable. The speciics of natural selection are regional and timely; environmental
factors vary from place to place and from time to time. An adaptation in one situation
variability inherent in any population. Darwin found evidence in artiicial selection, the
From the changes achieved by artiicial selection within a relativ ely short period of
account for the entire diversity of life. Population is a group of inter-breeding individuals
breeding of domesticated plants and animals. Humans have modiied other species
belonging to a particular species and sharing a common geographic area.
may be useless or even detrimental in other circumstances. An example of natural
The plants and animals we grow for food bear little resemblance to their wild ancestors.
Natural selection can amplify or diminish only those variations that are heritable. It is
over many generation by selecting individuals with the desired traits as breeding stock.
time, Darwinism postulated that natural selection operating over vast spans of time could
noteworthy to say that adaptations that an organism acquires by its own actions are
selection in action is the evolution of antibiotic resistance in bacteria.

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Visit My Other Channel Playlist .....................

NMDCAT PART 1:    • New 1st Year Biology  

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Class 11th Lectures:    • New 1st Year Biology  

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