Answer the following question given this paragraph: Q: What do you call an incomplete outer shell of an atom? Choices: - helium shell - motile shell - nucleic shell - valence shell A:
valence shell
Answer the following question given this paragraph: Amino acid units in a protein are connected by peptide bonds. What is another name for the functional group linking the amino acids?. Q: Amino acid units in a protein are connected by what bonds? Choices: - acidic - covalent - ionic - peptide A:
peptide
Q: Answer the following question given this paragraph: Salamanders can breathe with the help of gills, lungs, or their skin surface. Q: What organ breaks down excess amino acids and toxins in the blood? Choices: - kidney - heart - lungs - liver A:
A: liver
Question: Answer the following question given this paragraph: Streak is the color of the powder of a mineral. To do a streak test, you scrape the mineral across an unglazed porcelain plate. The plate is harder than many minerals, causing the minerals to leave a streak of powder on the plate. The color of the streak often differs from the color of the larger mineral sample ( Figure below ). Yellow-gold pyrite has a blackish streak. This blackish streak tells you that the mineral is not gold, because gold has a gold-colored streak. Q: What is the color of the powder of a mineral called? Choices: - dye - pigment - hue - streak A:
Answer: streak
*Question*
Answer the following question given this paragraph: The spiral staircase in Figure below also contains an inclined plane. Do you see it? The stairs that wrap around the inside of the walls make up the inclined plane. The spiral staircase is an example of a screw. A screw is a simple machine that consists of an inclined plane wrapped around a cylinder or cone. No doubt you are familiar with screws like the wood screw in Figure below . The screw top of the container in the figure is another example. Screws move objects to a higher elevation (or greater depth) by increasing the force applied. Q: Screws move objects to a higher elevation by increasing what? Choices: - velocity - torque - kinetic energy - force applied A:
**Answer**
force applied
*Question*
Answer the following question given this paragraph: Possible problems of the skeletal system include osteoporosis, osteoarthritis, fractures, and sprains. Q: Osteoporosis, osteoarthritis, fractures, and sprains are problems affecting what system? Choices: - digestive system - nervous system - tissues system - skeletal system A:
**Answer**
skeletal system