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What are evolutionary features of an organism??

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There are four principles at work in evolution—variation, inheritance, selection and time. These are considered the components of the evolutionary mechanism of natural selection.

Variation: In all species, individuals differ in their genetic makeup, producing many variations in their physical features; individuals in a population vary from each other.

Inheritance: Individuals pass some of their genetic material to their offspring; parents pass on their traits to their offspring.

Selection: Some individuals have inherited character (genes) that allows them to better survive or produce more offspring. These offspring, in turn, are more likely to survive and create offspring of their own. As a result, their genes become more common in the entire population; some variants reproduce more than others.

Time: Over time, selection results in changes in species. These changes may take days, or decades, or millions of years to occur; successful variations accumulate over time.

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