Q: Where are the terrestrial planets located, in relation to the sun? Choices: - farthest - To the left - To the right - closest A:
closest

Q: What are the key cells in the immune response? Choices: - keratinocytes - erythrocytes - leukocytes - lymphocytes A:
lymphocytes

Q: What are the two metals within a battery called? Choices: - sheath and a cathode - anode and sheath - anode and diode - anode and a cathode A:
anode and a cathode