Given a scientific question, generate a correct answer to it.

[EX Q]: What temperature scale is obtained by adding 273 degrees from the corresponding celsius temperature?
[EX A]: kelvin scale

[EX Q]: What is the mass of one mole of any given substance?
[EX A]: molar mass

[EX Q]: Reef sponges typically have what type of beneficial relationships with other reef species?
[EX A]:
symbiotic