Answer the following question given this paragraph: A virus cannot reproduce on its own. However, a virus can reproduce by infecting the cell of a living host. Inside the host cell, the virus uses the cell's structures, materials, and energy to make copies of itself. Q: What can reproduce by infecting the cell of a living host? Choices: - bacteria - mucus - carcinogens - virus A:
virus
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Answer the following question given this paragraph: Mammals are endothermic vertebrates that have four limbs and produce amniotic eggs. Defining traits of mammals are fur or hair and mammary glands. Mammals are noted for the many different ways they can move and their specialized limbs. Q: Mammals are endothermic vertebrates that have four limbs and produce what type of eggs? Choices: - gymnoic - umbilical - epithelial - amniotic A:
amniotic
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Answer the following question given this paragraph: Two other types of mass movement are slump and creep. They usually aren't as destructive as landslides and mudslides. Slump is the sudden movement of large blocks of rock and soil down a slope. Creep is the very slow movement of rock and soil down a slope. It causes trees, fence posts, and other structures to tilt downhill. Q: What type of mass movement is a sudden movement of large blocks of rock and soil down a slope? Choices: - deluge - resurgence - downturn - slump A:
slump
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Answer the following question given this paragraph: Bacteria are so small that they can only be seen with a microscope. When viewed under the microscope, they have three distinct shapes ( Figure below ). Bacteria can be identified and classified by their shape:. Q: How are bacteria identified and classified? Choices: - by there movement - by their color - by there cell count - by their shape A:
by their shape
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