Question

Scientifically define evolution

Answer 1

Change in the genetic composition of a population during successive generations, often resulting in the development of new species. The mechanisms of evolution include natural selection acting on the genetic variation among individuals, mutation, migration, and genetic drift.

Answer 2

Evolution is the process of slow phenotypic and genotypic changes in a specie over generations which are useful to adapted in a changing environment.

Step-by-step explanation:

• Natural selection is a process of selecting the best animals which are suited to that environment naturally.
• Our climate and environment are constantly changing with different temperature ranges and other parameters. As environment change species living in that environment also changes, decreasing that animals which cannot adapt to that environment and only best adapted to that environment remain to live.
• Then these animals further reproduce giving their best qualities to their offspring.
• Then offsprings are also naturally selected.
• Hence slowly and gradually changes to population are the process of evolution.