instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Some plants have stolons, or stems, that run along the ground and are commonly called runners.
answer:
Some plants have stolons, or stems, that run along the ground and are commonly called what?


question:
Metabolism produces waste energy in the form of heat, which helps warm-blooded (endotherm) animals conserve and maintain heat at a relatively constant body temperature.
answer:
Metabolism produces waste energy in the form of heat, which helps what type of animal conserve and maintain heat at a relatively constant body temperature?


question:
People with red hair usually have light type of skin.
answer:
People with red hair usually have what type of skin?