EVOLUTION
THE ORIGIN OF LIFE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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similar bone structures among species
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identical genetic code among all species
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fossil sequence that shows gradual changes over long time
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fossil sequences that show rapid changes over short periods of time
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Detailed explanation-1: -Fossils seem to appear suddenly throughout history. Punctuated equilibrium tries to explain these fossil ‘gaps’ or the absence of intermediate forms, by stating that they exist for very short periods of time when speciation occurs intensely in an isolated population.
Detailed explanation-2: -However, punctuated equilibrium is any sudden, rapid change in a species and can also be the result of other causes, such as huge and sudden changes in the environment that result in more rapid changes in the organisms through harsher selection.
Detailed explanation-3: -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-4: -“Punctuated equilibrium is the idea that evolution occurs in spurts instead of following the slow, but steady path that Darwin suggested. Long periods of stasis with little activity in terms of extinctions or emergence of new species are interrupted by intermittent bursts of activity.”