Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: Humans have 23 pairs pairs of chromosomes.

Answer: How many pairs of chromosomes do human have ?


Question: The bones of the newborn skull are not fully ossified and are separated by large areas called fontanelles.

Answer: The bones of the newborn skull are not fully ossified and are separated by large areas called what?


Question: Electron transport is the final stage of aerobic respiration, when energy from the krebs cycle is transferred to atp.

Answer:
What is the final stage of aerobic respiration, when energy from the krebs cycle is transferred to atp?