Answer the following question given this paragraph: Parasitism is a symbiotic relationship in which the parasitic species benefits while the host species is harmed. Q: What do you call the symbiotic relationship where a parasite benefits while the host is harmed? Choices: - hostism - symbolic damage - invasion - parasitism A:
parasitism
Answer the following question given this paragraph: Electromagnets can be turned on or off and their strength can be changed by controlling the electric current. Q: Electromagnets can be turned on or off and their strength can be changed by controlling what? Choices: - steady current - powered current - inducing current - electric current A:
electric current
Q: Answer the following question given this paragraph: What is the speed of the bird in Exercise 2.4? 6. Acceleration is the change in velocity over time. Given this information, is acceleration a vector or a scalar quantity? Explain. A weather forecast states that the temperature is predicted to be scalar quantity? Explain. Q: Acceleration is defined as the change in what over time? Choices: - mass - direction - volume - velocity A:
A: velocity
Question: Answer the following question given this paragraph: Protists are eukaryotes in the Protist Kingdom. Most are single-celled organisms. Protists are thought to be the oldest eukaryotes. They probably evolved when some prokaryotic cells invaded or were engulfed by others. Q: What is thought to be the oldest eukaryotes? Choices: - amoebas - prokaryotes - arthropods - protists A:
Answer: protists
*Question*
Answer the following question given this paragraph: The whirring blades of these wind turbines look stark against the darkening sky at sunset. The energy of the wind causes the blades to spin, and the energy of the spinning blades is used to generate electricity. People have been using wind for energy for centuries. Until about 200 years ago, for example, ships depended on wind to sail the oceans. And windmills have long been used to gather wind energy to pump water and do other useful work. Today, wind energy is making a comeback. Do you know why? What might be advantages of using the wind for energy? This chapter has the answers. Q: What energy source, now making a comeback, has helped propel ships and pump water for many years? Choices: - weather energy - geothermal energy - solar energy - wind energy A:
**Answer**
wind energy
(Q).
Answer the following question given this paragraph: Figure 13.11 In general, objects expand in all directions as temperature increases. In these drawings, the original boundaries of the objects are shown with solid lines, and the expanded boundaries with dashed lines. (a) Area increases because both length and width increase. The area of a circular plug also increases. (b) If the plug is removed, the hole it leaves becomes larger with increasing temperature, just as if the expanding plug were still in place. (c) Volume also increases, because all three dimensions increase. Q: In general, objects expand in all directions as temperature does what? Choices: - stays the same - cycles - decreases - increases A:
(A).
increases