What is evolution? Define it

Dear student,

Evolution can be defined as a continuous change in organisms over generations which is responsible for diversity of organisms at every level of biological organisation. It is a slow process of formation of growth and development of an organism. These changes help in the accumulation of desirable characters  over generations which helps to survive in the surrounding environment.
There are many theories that explain evolution in different ways out of which Darwin's Natural selection states : the organisms having particular traits that helps them in adjusting to the surrounding environment can only survive (SURVIVAL OF THE FITTEST) and perpetuate those traits to the succeeding generations.

Classification can play a great role in studying evolution as organisms sharing greater similarity are grouped together and comparing them among themselves and other organisms can result in better understanding of evolution of organism or group of organisms.

Regards

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