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

Example Input: Passage: Identify evidence for electroweak unification. The quarks in a particle are confined, meaning individual quarks cannot be directly observed. Are gluons confined as well? Explain. Answer: directly observed
Example Output: The quarks in a particle are confined, meaning individual quarks cannot be what?

Example Input: Passage: Segmented worms include the common earthworm and leeches. Answer: segmented
Example Output: The common earthworm and leeches are examples of what type of worm?

Example Input: Passage: The Prokaryotic Cell Recall that prokaryotes (Figure 22.10) are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus but instead generally have a single chromosomea piece of circular, double-stranded DNA located in an area of the cell called the nucleoid. Most prokaryotes have a cell wall outside the plasma membrane. Answer: nucleoid
Example Output:
Prokaryotic cells do not have a nucleus but instead generally have a single chromosome, a piece of double-stranded dna located in an area of the cell called the what?