Rock that forms from solidified magma is ________ rock.
A. igneous
B. sedimentary
C. metamorphic
Answer: A
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The most direct impact of the process of capillary action is to
A) contribute to overland flow. B) decrease the water available for transpiration. C) increase the infiltration rate. D) move water to the surface.
When will a protein have a net positive charge?
A) always B) never C) when the pH is above its isoelectric point D) when the pH is below its isoelectric point
Which of the following is true of eutrophication in marine ecosystems?
A) Eutrophication aids the ecosystems by providing needed limiting nutrients, such as phosphorus. B) Eutrophication can kill fish. C) Eutrophication can aid corals by killing parasites. D) Eutrophication is rare and occurs only in bad weather.
Which of the following organisms primarily regulates its internal body temperature by external means?
a. Whale b. Bear c. Mouse d. Butterfly