Given a scientific question, generate a correct answer to it.
--------
Question: Many adults and some children suffer from a deficiency of lactase. these individuals are said to be lactose intolerant because they cannot digest the lactose found in what?

Answer: milk

Question: The regions of a material where the north and south poles of atoms are aligned are called what?

Answer: magnetic domains

Question: Cancer cells take up glucose for what reason?

Answer:
energy