In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Q: Question: Organisms categorized by what species descriptor demonstrate a version of allopatric speciation and have limited regions of overlap with one another, but where they overlap they interbreed successfully? Answer: ring species

A: Organisms categorized by ring species species descriptor demonstrate a version of allopatric speciation and have limited regions of overlap with one another, but where they overlap they interbreed successfully.
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Q: Question: The reverse process of moving material into a cell is the process of what? Answer: exocytosis

A: The reverse process of moving material into a cell is the process of exocytosis.
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Q: Question: Most crustaceans have separate sexes, so they reproduce sexually using what? Answer: eggs and sperm

A:
Most crustaceans have separate sexes, so they reproduce sexually using eggs and sperm.
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