Answer the following question given this paragraph: The highest-numbered shell is the third shell, which has 2 electrons in the 3s subshell and 3 electrons in the 3p subshell. That gives a total of 5 electrons, so neutral phosphorus atoms have 5 valence electrons. The 10 remaining electrons, from the first and second shells, are core electrons. Q: How many valence electrons do neutral phosphorus atoms have? Choices: - nine - three - four - five A:
five

Answer the following question given this paragraph: Lipids provide the body with energy and serve other vital functions. One gram of lipids provides 9 Calories of energy. You need to eat small amounts of lipids for good health. However, large amounts can be harmful, especially if they contain saturated fatty acids from animal foods. 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

Answer the following question given this paragraph: Bones are far from static, or unchanging. Instead, they are dynamic, living tissues that are constantly being reshaped. Under the direction of osteocytes, osteoblasts continuously build up bone, while osteoclasts continuously break it down. You can watch an animated video of these processes in bone at http://www. youtube. com/watch?v=yENNqRJ2mu0 . Q: Bones are far from static, or unchanging. instead, they are what? Choices: - continuous - stable - fluid - dynamic A:
dynamic

Answer the following question given this paragraph: A piccolo and a tuba sound very different. One difference is the pitch of their sounds. Q: What quality of sound makes a tuba and a piccolo very different to a listener? Choices: - wavelength - tune - curve - pitch A:
pitch