EVOLUTION
PATTERNS OF EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The butterfly species experienced gradualism.
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The butterfly species experienced coevolution
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The butterfly species experienced punctuated equilibrium.
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The butterfly species experienced adaptive radiation
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Detailed explanation-1: -Many scientists think that the specialized association between today’s butterflies and flowering plants suggests that butterflies developed during the Cretaceous Period, often called the “Age of Flowering Plants, ” 65 million to 135 million years ago-a time when dinosaurs also roamed the earth.
Detailed explanation-2: -The theory of punctuated equilibrium states that evolutionary change is characterised by short periods of rapid evolution followed by longer periods of stasis in which no change occurs.
Detailed explanation-3: -Punctuated equilibrium is a theory that states that evolution occurs primarily through short bursts of intense speciation, followed by lengthy periods of stasis or equilibrium. The model postulates that nearly 99% of a species’ time on earth is spent in stasis, and change happens very quickly.
Detailed explanation-4: -Punctuated equilibrium can also happen because of gene mutations. For example, a cheetah species has no spots. However, due to a gene mutation, a cheetah cub is born with spots. Because this adaptation helps the cheetah to hide and survive, more cheetahs are born with spots.