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

Q: Passage: You consist of a great many cells, but like all other organisms, you started life as a single cell. How did you develop from a single cell into an organism with trillions of cells? The answer is cell division. After cells grow to their maximum size, they divide into two new cells. These new cells are small at first, but they grow quickly and eventually divide and produce more new cells. This process keeps repeating in a continuous cycle. Answer: cell division

A: What process allows an individual to develop from a single cell into an organism with trillions of cells?
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Q: Passage: In this equation, the letters A and B represent the reactants that begin the reaction, and the letter C represents the product that is synthesized in the reaction. The arrow shows the direction in which the reaction occurs. Answer: reaction mechanism

A: What term is used to describe the sequence of elementary steps that together comprise an entire chemical reaction?
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Q: Passage: Semen is the fluid that carries sperm through the urethra and out of the body. In addition to sperm, it contains secretions from the glands. The secretions control pH and provide sperm with nutrients for energy. Answer: semen

A:
What is the fluid that carries sperm through the urethra and out of the body, and provides it with nutrients?
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