Given a scientific passage and an answer, generate a question for the given answer.

Q: Passage: Asexual reproduction involves just one parent. It produces offspring that are genetically identical to the parent. Methods of asexual reproduction include binary fission, fragmentation, and budding. Answer: asexual

A: What type of reproduction only involves one parent?
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Q: Passage: The amount of material left over after a certain number of half-lives can be easily calculated. Answer: pheromone

A: What term is used to describe a chemical released by an animal that affects the behavior or physiology of animals of the same species?
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Q: Passage: Chloride ions are important in neutralizing positive ion charges in the body. If chloride is lost, the body uses bicarbonate ions in place of the lost chloride ions. Thus, lost chloride results in an increased reabsorption of bicarbonate by the renal system. Answer: increased bicarbonate reabsorption

A:
Why does the body react to a loss of chloride ions?
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