![]() As a result, those that are able to survive will be able to pass their traits or genes to the next generation. By then, the most fitted organisms will be favored to reproduce. Even if parents were adapted perfectly to the environment, yet, somehow the environment changes, their offspring tend to adapt to the changing environment in an attempt to thrive despite the limited resources and to win over the competition with the other inhabitants. Let us try to understand the principles underlying natural selection. This makes natural selection an essential driving force in evolution. It will always be selective on certain organisms possessing certain genetic combinations. Natural selection occurs when some of these changes help an organism to survive and produce more than others, causing their genes to become more common in the population over time.īecause the environment is continuously changing, no organism is construed as perfectly suited or absolutely adapted to its environment. ![]() It will be passed on to the next offspring. This variation exists within organisms, and changes occur at random. The basic idea of natural selection is that individuals are naturally variable, meaning that each one is different in some ways. It is a vital mechanism of evolution where there is a change in heritable traits of a population over generations. ![]() Natural selection (biology definition): a process in nature in which organisms possessing certain genotypic characteristics that make them better adjusted to an environment tend to survive, reproduce, increase in number or frequency, and therefore, are able to transmit and perpetuate their essential genotypic qualities to succeeding generations.Īccording to Urry et al., (2016) natural selection refers to the differential survival and reproduction of individuals. And organisms that are better suited to their environment tend to survive longer and produce more offspring. What is natural selection in biology? Natural selection is defined as a process in nature through which living organisms adapt and change in response to an environmental condition. ![]()
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