Q: How many valence electrons do neutral phosphorus atoms have? Choices: - nine - three - four - five A:
five

Q: What essential molecules can be harmful if ingested in large amounts, especially if they contain saturated fatty acids from animal foods? Choices: - oxygen - helium - hydrogen - lipids A:
lipids

Q: Bones are far from static, or unchanging. instead, they are what? Choices: - continuous - stable - fluid - dynamic A:
dynamic

Q: What quality of sound makes a tuba and a piccolo very different to a listener? Choices: - wavelength - tune - curve - pitch A:
pitch