instruction:
Given a scientific question, generate a correct answer to it.
question:
Renal plasma flow equals the blood flow per minute times the what?
answer:
hematocrit

question:
Shielding should be used when receiving x-rays to limit exposure to what potentially harmful form of energy?
answer:
radiation

question:
Nitrogen is an important macronutrient because it is part of nucleic acids and proteins. atmospheric nitrogen, which is the diatomic molecule n2, or dinitrogen, is the largest pool of nitrogen in these?
answer:
terrestrial ecosystems