(Question)
Answer the following question given this paragraph: Q: What is a decrease in the magnitude of the membrane potential? Choices: - digestion - ionization - inflammation - depolarization A:
(Answer)
depolarization

(Question)
Answer the following question given this paragraph: The nitrogen cycle moves nitrogen back and forth between the atmosphere and organisms. Bacteria change nitrogen gas from the atmosphere to nitrogen compounds that plants can absorb. Other bacteria change nitrogen compounds back to nitrogen gas, which re-enters the atmosphere. Q: The nitrogen cycle moves nitrogen back and forth between the atmosphere and what? Choices: - Ocean - Ozone Layer - sediments - organisms A:
(Answer)
organisms

(Question)
Answer the following question given this paragraph: The mass number is the number of protons plus the number of neutrons in an atom. For example, most atoms of helium have 2 neutrons, so their mass number is 2 + 2 = 4. This mass number means that an atom of helium has a mass of about 4 amu. Q: What makes up the mass number of an atom? Choices: - electrons and neutrons - atoms and neutrons - molecules and electrons - protons and neutrons A:
(Answer)
protons and neutrons