Organisms grow, multiply, and adapt. It’s the way we learned and the reason as to how the Earth’s population continues to increase. It applies to all organisms: animals, plants, bacteria, and others. However, there are factors that restrict the numbers of population when it comes to multiplying. Predators, food availability, habitat’s carrying capacity are all examples of limiting factors that play in the population growth, which leads to the process of natural selection. Those who are able to withstand these circumstances are the ones who will be responsible for the next generation, since their genes will be passed on to their offspring. This is how natural selection shapes the genetic pool of a population. Natural selection doesn’t happen in through a short time frame, but rather a process through long periods of time, sorted by the successfulness of a heritable biological trait passed down to its offspring. To help better understand the concept of natural selection, take a population of clams on the beach for an example. …show more content…
Suppose a dark-colored micro-organism colonized the rocks and sand at the beach, thereby changing the color of the substrate also to be dark. Before, The light color helped the clams to blend into the surrounding, making them less salient and exposed. There are some clams that are dark and stand out in the light colored sand. Consequently, you’ll notice the scarcity of the dark colored clams because predators usually spot them first before spying a lighter color clam. However, now that this new micro-organism came in, turning the beach’s sand and rocks to be dark, this exposes the populous light colored clams. With this change, the roles are now reversed. The dark clams now blend in with the scenery, while the lighter clams are now must defend themselves since they’ll find themselves encountering more predators than