00:02
Hello, my dear students, the concept given is about speciation and what is required for us is to find out its correct characteristic, okay, which is in the form of the option in the question.
00:23
Now first of all, what do you think is speciation? now, speciation is nothing but forming new species in a population.
00:34
Now, this can be formed because of various biological factors like mutation and also an exposure to changing environmental conditions.
00:49
Okay? like the amount of food, the temperature, presence of water, etc.
00:58
And along with mutation, it is the breeding.
01:03
So how are they breeding? are they breeding within the same species, which is intraspecific? kind of breeding, okay, or whether it is with different species.
01:18
So that is interspecific kind of breeding.
01:23
So this speciation is very, very important for natural selection.
01:32
That means for a population to survive, or a population to survive, there should be formation of new species or new characteristic which can adapt to the changing environment.
01:50
Now this adaptation of the new species to the changing environment is what is natural selection.
01:59
That is what is called as speciation.
02:01
Yes.
02:02
So once this new species are able to adapt to the changing environment, they become survival of the fittest.
02:08
Or the fittest animal or the organism in order to survive further.
02:14
And this keeps on taking over generation to generation, where the changes keeps on happening from over a generation, and the changing organisms which can adapt those survive and the other ones dies.
02:29
Okay...
