Scientists now believe that birds might have evolved from dinosaurs in a way that involved gradual changes over time rather than large, sudden genetic changes. This is the idea of gradualism, or small, slow changes/variations over time that are selected for, rather than the idea of punctuated equilibrium, which represents sudden, large changes in a species, often caused by the genetic mutations of some individuals.
For example, some changes began to occur in dinosaurs long before birds evolved. Feathers appeared on dinosaurs before birds came along, suggesting that birds adapted these features, which already existed, and used them in new ways. Birds may have also evolved from changes, such as by retaining a more babylike shape of the skull into adulthood. Birds also resemble dinosaur embryos, suggesting that small adaptations and changes may have paved the way for the evolution of birds from dinosaurs. Therefore, birds may have evolved from small changes in dinosaurs. See the link below for more information.
You should begin your paragraph with an overall claim about whether birds developed gradually or through punctuated equilibrium and then provide three supporting statements to show three specific reasons how the evolution of birds involved gradualism or punctuated equilibrium. Then provide three sentences that explain why these changes represented gradualism or punctuated equilibrium.
https://www.quantamagazine.org/how-birds-evolved-from-dinosaurs-20150602/
Sunday, May 24, 2015
I need a claim, three evidence sentences, and three reasoning sentences explaining how birds evolved from dinosaurs. Please explain and include the words "punctuated equilibrium" and/or "gradualism."
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