instruction:
Write a correct answer to the given question based on its associated fact. Make sure that your answer is contained in the associated fact. Don't be creative and introduce any new word that is not mentioned in the associated fact! Remember that the associated fact has been rearranged to form the question. So, the correct answer words must lie within the associated fact. The correct answer can be a word, phrase, or even a sentence.
question:
Fact: Roots have parts that regenerate after bisection. 
Question: What have parts that regenerate after bisection?
answer:
roots.


question:
Fact: Plant growth in width or girth emanates from within and around the vascular tissues. 
Question: Where in the plant does growth in width or girth originate?
answer:
vascular tissue.


question:
Fact: Loss of greenhouse gases has created a hole over Antarctica. 
Question: Loss of what has created a hole over Antarctica?
answer:

greenhouse gases.