Which modern day animal has ancestors represented in the Ediacaran fauna?
a. frogs
b. jellyfish
c. trilobites
d. snakes
e. corals
b
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Antarctica
A) is owned by the United Nations. B) has a small but thriving native population. C) is the coldest place in the Northern Hemisphere. D) has been carved like a territorial pie into claims by various states.
Which of the following best matches the description?Level area constructed on steep slopes for agricultural purposes.
A. humus B. windbreak C. leaching D. soil profile E. weathering F. horizon G. terrace H. friable I. parent material J. contour farming K. soil texture L. soil structure M. lithosphere N. chemical weathering O. mechanical weathering P. asthenosphere Q. loam
In the United States, the first phase of urbanization is migration ____.
A. from rural areas to large central cities B. from large central cities to smaller cities and suburbs C. forced by economic issues from West to East D. from North and East to South and West E. from cities and suburbs to developed areas outside suburbs
The orbital motion of a deep-water wave extends to a depth equal to ________.
A. the seafloor depth B. one-half the wavelength C. twice the wavelength D. one-half the wave's height E. the wave's height