EVOLUTION
EVOLUTION OF A POPULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Each species produces more offspring than can survive
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Offspring compete with one another for limited resources
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Organisms in populations are genetically unique
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Offspring with the most favorable traits are the most likely to survive and pass on their genes
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Detailed explanation-1: -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.
Detailed explanation-2: -Natural selection, also known as “survival of the fittest, ” is the more prolific reproduction of individuals with favorable traits that survive environmental change because of those traits. This leads to evolutionary change, the trait becoming predominant within a population.
Detailed explanation-3: -The essence of Darwin’s theory is that natural selection will occur if three conditions are met. These conditions, highlighted in bold above, are a struggle for existence, variation and inheritance.
Detailed explanation-4: -They are: mutation, non-random mating, gene flow, finite population size (genetic drift), and natural selection.