Prokaryotes and eukaryotes are different in all of the following except ________.
A. having a nucleus
B. the use of mitochondria
C. the presence of organelles
D. their appearance in the fossil record
E. potentially being single-celled
Answer: E
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The United States imports nearly all of the following minerals:
Check all that apply. a. graphite b. feldspar c. manganese d. quartz e. strontium
Which volcano is shown in Figure 20.3c? Explain your conclusion. Which tectonic setting is the source of its magma? What are the types of materials produced during eruptions and the hazards associated with these volcanoes?
Which of the following best matches the description?System that traps sunlight energy as heat energy and uses machines to move it.
A. underground mining B. resources C. secondary recovery D. renewable energy sources E. liquefied natural gas F. nonrenewable energy sources G. overburden H. surface mining I. passive solar system J. acid mine drainage K. active solar system L. black lung disease M. reserves N. photovoltaic cell O. geothermal energy
At which temperature would Earth be radiating energy at the greatest rate or intensity?
a. ?-5°F b. ?-40°F c. ?60°F d. ?32°F e. ?105°F