Q: In which kind of species do open circulatory systems serve additional functions? Read this paragraph and choose the correct option from the provided answers: Choices: - some apes - some seedlings - some earthworms - some invertebrates A:
some invertebrates

Q: Chemical equations in which heat is shown as either a reactant or a product are called what? Read this paragraph and choose the correct option from the provided answers: 2Al(s) + Fe2O3(s) 2Fe(s) + Al2O3(s) + heat to indicate that heat is one of the products. Chemical equations in which heat is shown as either a reactant or a product are called thermochemical equations. In this reaction, the system consists of aluminum, iron, and oxygen atoms; everything else, including the container, makes up the surroundings. During the reaction, so much heat is produced that the iron liquefies. Eventually, the system cools; the iron solidifies as heat is transferred to the surroundings. A process in which heat (q) is transferred from a system to its surroundings is described as exothermic. By convention, q < 0 for an exothermic reaction. Choices: - hydroelectric equations - thorium equations - feedstock equations - thermochemical equations A:
thermochemical equations

Q: What does oil do when mixed with water? Read this paragraph and choose the correct option from the provided answers: Figure 2.13 Oil and water do not mix. As this macro image of oil and water shows, oil does not dissolve in water but forms droplets instead. This is due to it being a nonpolar compound. (credit: Gautam Dogra). Choices: - dissolves - precipitates - dissappears - forms droplets A:
forms droplets

Q: How is sediment transported? Read this paragraph and choose the correct option from the provided answers: The shore may have a lot of sediment washed from land or eroded from cliffs. The sediment is transported by currents. Choices: - storms - landslides - winds - currents A:
currents