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Natural Selection Essay

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Natural Selection is the process by which organisms that contain an array of traits that have a survival advantage in an environment tend to leave more offspring that can survive to reproduce in the next line of their lineage. Natural selection is a process that is observable which falls into the category of operational science. In short periods of time different organisms were observed. New species have also been observed to prove this theory.
“Speciation is the process of change in a population that produces distinct populations which rarely naturally interbreed due to geographic isolation or other factors”. Speciation is also observable and fits into the category of operational science. Speciation has never been observed to turn one kind …show more content…

There is a resemblance in mammals and fish where the fins look very similar to the legs of mammals. Among insects, the moth has a very different external resemblance to any other insect. Common turnips and Swedish turnips also share this similarity. The similarity of a greyhound and the race cannot be marked any different than the ones mentioned previously. We can clearly see why for classification’s sake the importance of ranking species in analogical and affirmative resemblances. Animals living in a similar environment may look very similar but the species will not be blood-related. There is also a huge difference in that there can be similar characters that are analogical when they are compared to another, but there are characteristics that belong to one species: For example, fins can come in all different sizes. The fins will be very like those from a goldfish to a guppy, but will differ from those of whales because of the size difference. The characteristics distinguish what makes a species unique and different from the rest. One of Darwin’s difficulties was the absence of variations. It goes on to say as natural selection performs modifying each form, each new form that is learned will tend to take the place of the less important characteristics. The extinction and the natural selection will, as we have seen, go hand in hand. In this case, if we look at each species as descended from some unknown form, then those ill parent traits have all been

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