I want to know the answer to the following question:
How much of a Siboglinidae's weight is symbiotic bacteria?
All the background I'm provided with is that "However, in members of the tube-dwelling family Siboglinidae the gut is blocked by a swollen lining that houses symbiotic bacteria, which can make up 15% of the worms' total weight.". Is that enough to answer the question?
Answer: yes