LIFE SCIENCE

Detailed explanation-1: -Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.

Detailed explanation-2: -How does natural selection work? In natural selection, genetic mutations that are beneficial to an individual’s survival are passed on through reproduction. This results in a new generation of organisms that are more likely to survive to reproduce.

Detailed explanation-3: -Natural selection is a simple mechanism that causes populations of living things to change over time. In fact, it is so simple that it can be broken down into five basic steps, abbreviated here as VISTA: Variation, Inheritance, Selection, Time and Adaptation.

Detailed explanation-4: -Environmental conditions constantly change and this often encourages organisms to compete for limited resources such as food and shelter. Such competition reduces the number of organisms that actually survive the new conditions. Individuals that can compete successfully are more likely to survive.

Detailed explanation-5: -Evolution is the process by which populations of organisms change over generations.