Problem:OPTIONS:
- pliant skeletons
- exoskeletons
- hydroskeleton
- endoskeletons

Answer the following question given this paragraph:   Figure 38.4 The skeletons of humans and horses are examples of endoskeletons. (credit: Ross Murphy).   Q: The skeletons of humans and horses are examples of what?   A:
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A: endoskeletons


Problem:OPTIONS:
- chemical
- gas
- liquid
- solution

Answer the following question given this paragraph:   A solution forms when a solute dissolves in a solvent. The rate of dissolving is faster with stirring, a higher temperature, or greater surface area. Many solutes are soluble in water because water is polar.   Q: What forms when a solute dissolves in a solvent?   A:
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A: solution


Problem:OPTIONS:
- fracking
- migration
- volcanic activity
- plate tectonics

Answer the following question given this paragraph:   Earthquakes are used to identify plate boundaries ( Figure below ). When earthquake locations are put on a map, they outline the plates . The movements of the plates are called plate tectonics.   Q: What is the movement of plates called?   A:
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A: plate tectonics


Problem:OPTIONS:
- heat
- earth
- food
- sun

Answer the following question given this paragraph:   Figure 4.2 Ultimately, most life forms get their energy from the sun. Plants use photosynthesis to capture sunlight, and herbivores eat the plants to obtain energy. Carnivores eat the herbivores, and eventual decomposition of plant and animal material contributes to the nutrient pool.   Q: Ultimately, most life forms get their energy from this?   A:
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A:
sun