Question

define evolution describe darwins theory of evolution
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Answer 1

hey mate

Evolution is the process of gradual change in the heritable characters generation by generation. These variations are occurring due to change in the environmental conditions and also these variations help the organism to survive in this challenging environment.

Darwin's theory - This theory is also known as the theory of natural selection. According to this theory, the population has variations only those organism will able to survive in the environment, which will perfectly fit in the environmental situations. That's why this

theory is also known as the survival of fittest.

so basically he said that the thing or the person who is the fittest will only survive ....

hipr it hepls

MARKS BRAINLIST

Answer 2

Answer:

Evolution is a sequence of gradual change in a primitive organism over a million of years to form new organisms.

Darwin theory==

$1)within \: any \: population \: \\ their \: is \: a \: natual \: variation. \\ some \: individual \: have \: more \: \\ favourable \: \: vaiation \: than \: other$

2)even through all the species produce large no. Of offspring, population remain constant.

3)this is due to struggle between the members of same species and different species for food, space and mate.

4)the struggle for the survival within populations eliminates less unfit individuals. And fit individuals possessing favourable variations survive. This is called natural selection.

5)these favourable variations now pass from generation to generation progeny.

6)these variations accumulate over a long time, lead to the origin of new species.

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