The process of creating a new species is known as speciation. Speciation can occur when an event causes reproductive isolation of organisms within the species; this prevents the organisms from mating and producing hybrid offspring.
When: For reasons that are not completely clear, the data show the long-term dynamics of evolution to be quite slow." Across a broad range of species, the research found that for a major change to persist and for changes to accumulate, it took about one million years.
Answer: When the two populations can no longer interbreed.
Explanation: Trust me G
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