A group of interbreeding individuals of the same species in the same geographic region is called a(n) ____.
A. community
B. population
C. ecosystem
D. biosphere
E. biome
Answer: B
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List the two techniques that are most commonly used to mine coal: ___________ and
_________. Fill in the blank(s) with the appropriate word(s).
Which of the following statements best describes the formation of secondary magmas?
A) Decompression melting creates a mafic magma from mantle material. B) Iron-rich minerals will form in a cooling magma and leave the remaining melt with a more silicic composition. C) Partial melting of felsic rocks creates a silica-rich magma. D) Water dehydrating from a subducted plate will melt mantle material.
Explain what you think E. O. Wilson meant when he said, "The first animal species to go are the big, the slow, the tasty, and those with valuable parts such as tusks and skins."
What will be an ideal response?
How is a pothole formed?
A. Through deposition of sand on the inside curve of a meander B. By the saltation of individual sand grains on a muddy stream bed C. Because of the chemical weathering of rocky banks by acidic river water D. Through the swirling, scouring action of pebbles on a hard stream bed E. Through erosion of a muddy bank on the outside curve of a meander