It helps us know the genetics of genes.
Answer - Speciation
Reasoning - Pretty much what has happen was the two species has evolved over the course of evolution if you want to put it that way why the are incapable of breeding.
Answer:
Mostly spikes, which protruded out of the dinosaurs' skin and provided certain benefits to different types of dinosaurs: most notably Stegosauruses, which use their spikes to differentiate the temperature between the two sides of their bodies to tell which side the sun is on.
Explanation:
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