____ occurs when a species no longer exists on the earth.
A. Ecological extinction
B. Local extinction
C. Biological extinction
D. Natural selection
E. Speciation
Answer: C
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In Egypt, the large difference between the physiological density and arithmetic density indicates that most of the country's land is suitable for intensive agriculture
Indicate whether the statement is true or false.
Experiments involving early atmospheric conditions were able to produce amino acids, sugars, and even microscopic bacteria.
a. true b. false
Coastal managers have many methods to protect shorelines, among which are engineering options like building jetties, groins, sea walls, and beach renourishment projects. Discuss the positive and negative effects of each of these engineering solutions on the coastlines. Are these viable permanent solutions? Why or why not?
A(n) ________ scale remains correct even if the map is enlarged or reduced when reproduced
A) isogonic B) large C) graphic D) representative fraction E) color