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.
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Question: Question: What might a scientist do to confirm the work of another? Answer: replicate their work

Answer: To confirm the work of another scientist, a scientist might replicate their work.


Question: Question: What begins approximately six weeks after fertilization in an embryo? Answer: ossification

Answer: Ossification begins approximately six weeks after fertilization in an embryo.


Question: Question: What is needed to create muscles, regulate chemical reactions, and transport oxygen? Answer: proteins

Answer:
Proteins is needed to create muscles, regulate chemical reactions, and transport oxygen.