How does natural selection lead to evolution?
A. Adapted traits cannot be passed to offspring.
B. Many small changes can create a whole new species.
C. Every generation is a new species.
D. An organism always has the same traits as its parent.
Answer: B. Many small changes can create a whole new species.
As a major mechanism, natural selection takes place in the process where evolution occurs. During this phase, this microsystem selects the genetic variations arising randomly (through mutations) or genetically (through recombination) among the members of a population. Those with favorable qualities or variation that enhance fitness (ability to tuse 3a survival and reproduction) will have a higher chance of introducing these qualities into their next generations. This is where many tiny positive modifications over multiple generations get together to make a big impact on the features that a population has. Finally, if there are such significant changes over long periods of time, a speciation process might begin where the offspring of these populations is increasingly differentiated from the ancestor. One of the fundamental mechanisms of natural selection in its progression is incremental change through natural selection, which is what evolution is. This is how there is much diversity in life forms today.
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