The development of ________, organisms that reproduce sexually and have cells that contain nuclei, may have increased dramatically the rate of evolutionary change
Fill in the blank(s) with correct word
eukaryotes
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A hydrogen-oxygen fuel cell uses
A) hydrogen and water and generates electricity and oxygen. B) hydrogen and oxygen and generates electricity and water. C) carbon dioxide and water and generates electricity and hydrogen. D) hydrogen and water and generates electricity, oxygen and carbon dioxide.
Which mineral property is the least useful for identifying minerals, and why?
a. Color is the least useful property for identification because it is the most obvious property. b. Streak is the least useful property for identification, as the same mineral type can be found with several different colors of streak due to impurities in the mineral. c. Density is the least useful property for identification because different specimens of the same type of mineral can vary in size. d. Color is the least useful property for identification, as the same mineral type can be found in several different colors due to impurities in the mineral. e. Streak is the least useful property for identification because it does not work for minerals with metallic lusters.
Flat, stable areas of continental crust tend to be located ________
A) in areas that receive large amounts of rainfall B) along coastlines C) in the interior of continents D) near desert regions
The _________ of Europe provide a diversity of geographic opportunities that have catapulted Europe through the Industrial Revolution and into the information age.
-population distribution -physical landforms -water bodies -natural resources -mountains